Transocean Offshore Deepwater Drilling Inc. v. Noble Corporation plc et al

Filing 177

MEMORANDUM OPINION AND ORDER DENYING 132 SEALED MOTION for Partial Summary Judgment (Breach of Contract), 133 MOTION for Partial Summary Judgment on Breach of Contract (Signed by Judge George C Hanks, Jr) Parties notified.(jegonzalez, 4)

United States District Court
Southern District of Texas

ENTERED
UNITED STATES DISTRICT COURT
SOUTHERN DISTRICT OF TEXAS
HOUSTON DIVISION
TRANSOCEAN OFFSHORE
DEEPWATER DRILLING INC.,
Plaintiff,
VS.
NOBLE CORPORATION PLC, et al,
Defendants.

April 02, 2020
David J. Bradley, Clerk

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§ CIVIL ACTION NO. 4:17-CV-123
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MEMORANDUM OPINION AND ORDER
Pending before the Court are cross-motions for summary judgment on the breachof-contract claim pled by the plaintiff, Transocean Offshore Deepwater Drilling,
Incorporated (“Transocean”). Having considered the summary judgment record, the other
filings in the case, and the parties’ excellent briefing and oral argument regarding the
novel issues raised therein, the Court will DENY both motions (Dkt. 132 and Dkt. 133).
I.

BACKGROUND

This lawsuit began as a straightforward patent infringement case in which
Transocean sued the defendants (a group of related entities1 to which the Court will refer
collectively as “Noble”) alleging that five of the defendants’ dual-activity offshore
drillships infringed on four of Transocean’s patents relating to dual-activity offshore
drilling rigs (“the patents-in-suit”). However, during the parties’ briefing and motion
practice regarding claim-construction and infringement issues, a separate but related
The entities are Noble Corporation, Noble Drilling Americas LLC, Noble Drilling Exploration
Company, Noble Drilling Holding LLC, Noble Drilling Services Inc., Noble Drilling (U.S.)
LLC, and Noble Drilling (U.S.) Inc.
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matter that had apparently been lurking in the background since the beginning of the
lawsuit emerged. Transocean amended its complaint to allege that Noble had breached a
no-challenge clause contained in a license agreement that settled a different patent
infringement case between Transocean and Noble (“the license agreement”) (Dkt. 94;
Dkt. 133-1). For the alleged breach of contract, Transocean seeks $11 million, plus
interest, in liquidated damages (Dkt. 94 at p. 14).
Transocean and Noble signed the license agreement in 2007 after Transocean filed
a lawsuit alleging that a Noble drillship called the Clyde Boudreaux—which, to be clear,
is not one of the drillships at issue in this case—infringed the patents-in-suit. See
Southern District of Texas case number 4:07-CV-618 at Dkt. 1. Emails contained in the
summary judgment record in this case indicate that, when the parties signed the license
agreement to settle the Clyde Boudreaux lawsuit, Transocean discounted its normal initial
licensing fee from $15 million to $4 million in exchange for a no-challenge promise from
Noble (Dkt. 138-3 at p. 2). According to the emails, the $11 million liquidated damages
figure contained in the no-challenge clause represents that discount (Dkt. 138-3 at p. 2).
The no-challenge clause constitutes Section 4.3 of the license agreement, and it reads:
Noble Licensee covenants that it will not participate as a party or
financially support a third party in any administrative or court proceeding
or effort in the world to invalidate, oppose, nullify, reexamine, reissue or
otherwise challenge the validity, enforceability, or scope of any claim of the
Licensed Patents. Breach of this section 4.3 shall be considered a material
breach which may not be cured under section 5.2. If Noble Licensee
breaches this section 4.3, then Noble must pay Transocean an additional
eleven million dollars ($11,000,000) plus interest accumulating since the
Effective Date of this Agreement.
Dkt. 133-1 at p. 5; Dkt. 94 at p. 8.

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Transocean alleges that Noble’s actions in this lawsuit have breached the nochallenge clause’s prohibition against “challeng[ing] the . . . scope of any claim of the”
patents-in-suit (Dkt. 132 at p. 6). Transocean alleges three specific breaches:
(1) In the briefing on its motion for summary judgment on the basis of
noninfringement, Noble, citing instances in which Transocean allegedly
distinguished prior art by claiming that floating rigs need motion
compensation equipment to advance tubular members to the seabed,
argued that “the principles of disclaimer, estoppel, and basic fairness”
should prevent Transocean from arguing in this lawsuit that a floating
rig without motion compensation equipment is capable of advancing
tubular members to the seabed (Dkt. 76 at pp. 24–27; Dkt. 83 at pp. 16–
21).
(2) In its claim-construction briefing, Noble argued that the phrase “to the
seabed and into the body of water to the seabed” in claim 17 of one of
the patents-in-suit was “nonsensical” and should be construed to mean
“to the seabed and into the bed of the body of water,” a proposed
construction that Transocean contends was an attempt to narrow the
scope of the claim (Dkt. 53 at pp. 32–34).
(3) In the briefing on its motion for summary judgment on the basis of
noninfringement, Noble, citing instances in which Transocean allegedly
distinguished prior art by differentiating preassembly of tubular string
portions from drilling activities and operations, argued that “the
preassembly of tubular string portions is not itself a drilling activity [or
a] drilling operation” (Dkt. 76 at pp. 14–20; Dkt. 83 at pp. 10–15; Dkt.
116 at pp. 8–14).
Neither the license agreement nor the balance of the summary judgment record
contains any language clarifying what the license agreement means when it refers to
“challeng[ing] the . . . scope” of a patent claim. No helpful definitions are provided in the
license agreement; and the emails in the summary judgment record discussing the license
agreement never mention challenges to the scope of claims, even though they contain
passages specifically addressing challenges to patent validity and enforceability. For

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instance, with regard to the consent judgment that terminated the Clyde Boudreaux
litigation, Transocean’s counsel wrote to Noble’s counsel that “Transocean believes a
consent judgment ensures that patent validity and enforceability will not be litigated
again with respect to the Clyde Boudreaux or any subsequent dual activity rig” (Dkt. 1383 at p. 2) (emphasis added). In the same email, Transocean’s counsel wrote of the nochallenge clause’s liquidated damages provision that “[t]he $11M payment for
challenging validity is based upon a discount of the normal initial payment of $15M”
(Dkt. 138-3 at p. 2) (emphasis added). In other words, even when supplemented by
summary judgment evidence shedding light on the parties’ negotiations, the license
agreement does not clearly establish the parameters of the conduct prohibited by the
“challenge the . . . scope of any claim” language in the no-challenge clause. Nevertheless,
each party seeks judgment in its favor regarding Transocean’s claims for breach of the
license agreement as a matter of law under Federal Rule of Civil Procedure 56.
II.

THE APPLICABLE LEGAL STANDARDS

A. Rule 56
In deciding a motion for summary judgment under Federal Rule of Civil
Procedure 56, the Court must determine whether the pleadings, the discovery and
disclosure materials on file, and any affidavits show that there is no genuine issue as to
any material fact and that the movant is entitled to judgment as a matter of law. Celotex
Corp. v. Catrett, 477 U.S. 317, 322–23 (1986). “An issue is material if its resolution
could affect the outcome of the action. A dispute as to a material fact is genuine if the
evidence is such that a reasonable jury could return a verdict for the nonmoving party.”
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DIRECT TV Inc. v. Robson, 420 F.3d 532, 536 (5th Cir. 2006) (citations omitted). In
deciding whether a genuine and material fact issue has been created, the Court must
review the facts and the inferences to be drawn from those facts in the light most
favorable to the non-movant. Reaves Brokerage Co. v. Sunbelt Fruit & Vegetable Co.,
336 F.3d 410, 412 (5th Cir. 2003).
B. Choice of law
First the Court must decide which body of law to apply to Transocean’s breach of
contract action. Even though this lawsuit contains claims for patent infringement, the
claim at issue in these cross-motions for summary judgment is an action for breach of the
license agreement’s no-challenge clause. “Generally, interpretation of a settlement
agreement is not an issue unique to patent law, even if arising in the context of a patent
infringement suit[,] . . . [and the Federal Circuit] appl[ies] the law of the appropriate
regional circuit” to interpretation of the agreement. Novamedix, Ltd. v. NDM Acquisition
Corp., 166 F.3d 1177, 1180 (Fed. Cir. 1999). In an action brought specifically for breach
of a settlement agreement, typically “[t]he question of interpretation is . . . governed not
by federal patent law, but by state contract law” because the “grounds for decision are
based on state contract law.” Gjerlov v. Schuyler Labs., Inc., 131 F.3d 1016, 1020 (Fed.
Cir. 1997). Under those general choice-of-law rules, Texas and Fifth Circuit law would
govern Transocean’s breach of contract action and the interpretation of the “challenge the
. . . scope of any claim” language in the no-challenge clause. Sanofi-Aventis v. Apotex
Inc., 659 F.3d 1171, 1178 (Fed. Cir. 2011); see also Gjerlov, 131 F.3d at 1020–22
(holding that Iowa contract law governed interpretation of the terms “glucose” and “Iowa
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State University Testing Laboratories” in an appeal from the district court’s grant of a
motion to enforce a settlement agreement that had resolved a patent infringement case);
Interspiro USA, Inc. v. Figgie International Inc., 18 F.3d 927, 931 (Fed. Cir. 1994)
(holding that “[i]nterpretation of an agreement presents a question of law, governed by
state contract law” and that New York law accordingly governed interpretation of the
contractual provisions controlling royalty calculation in an appeal from the district
court’s grant of a motion to enforce a settlement agreement that had resolved a patent
infringement case).
So, does this general rule also apply to breach of contract claims stemming from
no-challenge clauses in a settlement agreement? It appears the answer is “might” and
“depends.” Nine years ago, the Federal Circuit held that it lacked jurisdiction over the
appeal of a breach of contract lawsuit in which one party to a settlement agreement that
had resolved a patent infringement dispute sued the other parties for violating the
settlement agreement’s no-challenge clause—a holding consistent with the notion that
breach of contract actions stemming from no-challenge clauses do not present an issue
governed by Federal Circuit law. Rates Technology, Inc. v. Speakeasy, Inc., 437 Fed.
App’x 940, 940–41 (Fed. Cir. 2011) (transferring appeal to the Second Circuit); see also
Rates Technology, Inc. v. Speakeasy, Inc., 685 F.3d 163, 164–67 (2d Cir. 2012), cert.
denied, 568 U.S. 1122 (2013) (providing factual background). However, two prior
opinions by the Federal Circuit demonstrate that the choice of law analysis is not always
quite this simple. In both of those cases the Federal Circuit applied its own law to resolve

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settlement agreement disputes.2 In Flex-Foot, Inc. v. CRP, Inc., 238 F.3d 1362 (Fed. Cir.
2001), and Baseload Energy, Inc. v. Roberts, 619 F.3d 1357 (Fed. Cir. 2010), the Federal
Circuit held that the issue of “whether public policy precluding patent license estoppel
should extend to a waiver of validity challenges in a settlement agreement” was
“intimately related with the substance of enforcement of a patent right” and consequently
applied its own law in examining whether particular contractual waivers contained in
settlement agreements barred invalidity and unenforceability defenses. Flex-Foot, 238
F.3d at 1365; Baseload, 619 F.3d at 1361. Rates Tech, on the one hand, with Flex-Foot
and Baseload, on the other, can be understood by highlighting the different types of
claims at issue: Rates Tech involved breach of contract claims but not patent
infringement claims, while Flex-Foot and Baseload involved patent infringement claims3
but not breach of contract claims, so Rates Tech had a far more tangential relationship to
the enforcement of patent rights.
This lawsuit does not comfortably fit under the facts of either Flex-Foot or Rates
Tech, though, because it intertwines both types of claims. Transocean has sued Noble for
breaching the no-challenge clause by taking certain actions to defend against
Transocean’s allegations of patent infringement, and Transocean has added the breach of
contract claims to the ongoing patent infringement lawsuit. As a result, “[i]t is somewhat
Neither of these holdings was expressly overruled by the court in Rates Tech.
To be precise, Flex-Foot involved an arbitration proceeding in which the alleged infringer
attempted to raise an invalidity defense, and Baseload involved a preemptive declaratory
judgment action in which a licensee, unable either to secure financing for the licensing fee or to
develop its technology without risking an infringement suit, sought a judicial declaration that the
licensor’s patent was invalid and unenforceable. Flex-Foot, 238 F.3d at 1364; Baseload, 619
F.3d at 1359–60. For the purposes of this choice-of-law analysis, there is no material distinction
between those procedural postures and that of a typical federal lawsuit for patent infringement.
2
3

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unclear whether state or Federal Circuit law should apply in interpreting the settlement
agreement in this case.” Certusview Technologies, LLC v. USIC, LLC, No. 2:14-CV-373,
2014 WL 12591937, at *10 n.7 (E.D. Va. Dec. 15, 2014) (discussing the tension between
the choice-of-law rule stated in Baseload and the choice-of-law rule stated in Gjerlov).
To harmonize Federal Circuit law with Texas and Fifth Circuit law, the Court
must split the interpretation of the license agreement’s no-challenge clause into two
inquiries:
(1) Is the no-challenge clause enforceable as a matter of public policy?; and
(2) If so, can the no-challenge clause be construed as a matter of law?
The first inquiry is guided by Federal Circuit law; the second, by state and
regional circuit law. As discussed above, “[b]ecause the interpretation of a settlement
agreement is not an issue unique to patent law,” the Federal Circuit generally interprets
settlement agreements by “apply[ing] the law of the appropriate regional circuit[,]”
Sanofi-Aventis, 659 F.3d at 1178, and “state contract law.” Gjerlov, 131 F.3d at 1020. To
the extent that Flex-Foot and Baseload have begun to carve out an exception to the
Federal Circuit’s general choice-of-law rules regarding the interpretation of settlement
agreements, the parameters of that exception, so far, are that Federal Circuit law will
determine whether a contractual waiver of claims is “clear and unambiguous” enough to
strike a proper balance between the public policy concerns of permitting full and free
competition in the use of ideas and encouraging the settlement of patent litigation—i.e.,
whether it is clear and unambiguous enough to be enforceable as a matter of public
policy. Baseload, 619 F.3d at 1361–62. Flex-Foot and Baseload do not explain, however,
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what should happen when a no-challenge clause meets the Baseload/Flex-Foot publicpolicy standard but nevertheless requires further construction to determine liability for a
breach of the clause. In such circumstances, a trial court must, pursuant to Baseload and
Gjerlov, utilize state and regional circuit law to construe the no-challenge clause and
determine the parties’ intent.
C. Enforceability under Federal Circuit law
Under Federal Circuit precedent, a settlement agreement or consent decree that
resolves a patent infringement case can bar patent claims and defenses in future
infringement actions “if the language of the agreement or consent decree is clear and
unambiguous.” Baseload, 619 F.3d at 1361–62. “In the context of settlement agreements,
as with consent decrees, clear and unambiguous language barring the right to challenge
patent validity in future infringement actions is sufficient, even if invalidity claims had
not been previously at issue and had not been actually litigated.” Id. at 1363. “However,
any surrender of the right to challenge validity of a patent is construed narrowly.”
Diversey Lever, Inc. v. Ecolab, Inc., 191 F.3d 1350, 1352 (Fed. Cir. 1999). “Each case
must be examined on its own facts in light of the agreement between the parties.”
Baseload, 619 F.3d at 1363.
D. Contract construction under Texas law
When construing a contract, courts applying Texas law “must ascertain and give
effect to the parties’ intentions as expressed in the writing itself.” El Paso Field Services,
L.P. v. MasTec North America, Inc., 389 S.W.3d 802, 805 (Tex. 2012). The Court must
first determine whether the contract “is so worded that it can be given a certain or definite
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legal meaning or interpretation[;]” if it is, “then it is not ambiguous and the court will
construe the contract as a matter of law.” Coker v. Coker, 650 S.W.2d 391, 393 (Tex.
1983). Deciding whether a contract is ambiguous is a question of law for the Court. J.M.
Davidson, Inc. v. Webster, 128 S.W.3d 223, 229 (Tex. 2003). The Court must decide the
question of ambiguity “by examining the contract as a whole in light of the circumstances
present when the contract was entered.” Anglo-Dutch Petroleum International, Inc. v.
Greenberg Peden, P.C., 352 S.W.3d 445, 449–50 (Tex. 2011); see also Sun Oil Co.
(Delaware) v. Madeley, 626 S.W.2d 726, 731–32 & n.5 (Tex. 1981) (holding that “the
proper rule” of contract construction is that “the court must first consult surrounding
circumstances to determine whether or not the contract is ambiguous”). When examining
the contract, the Court must be mindful that even:
[i]n interpreting contracts or clauses set forth in “clear and unambiguous”
language, the courts do not confine themselves to a mere inspection of the
document. Before committing themselves, the courts carefully examine the
surrounding circumstances, prior negotiations, and all other relevant
incidents bearing on the intent of the parties. Only after a careful and
painstaking search of all the factors shedding light on the intent of the
parties, only after “turning signs and symbols into equivalent realities” will
the court conclude that the language in any given case is “clear and
unambiguous.”
Sun Oil, 626 S.W.2d at 731 n.5 (ellipses, parenthetical phrases, and citation
omitted) (quoting 4 Williston on Contracts Section 600A).
“If, in the light of surrounding circumstances, the language of the contract appears
to be capable of only a single meaning, the court can then confine itself to the writing.”
Id. at 731. But “if the contract is subject to two or more reasonable interpretations after
applying the pertinent rules of construction, the contract is ambiguous, creating a fact

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issue on the parties’ intent.” Davidson, 128 S.W.3d at 229; see also Coker, 650 S.W.2d at
393–94 (“A contract . . . is ambiguous when its meaning is uncertain and doubtful or it is
reasonably susceptible to more than one meaning.”). When a contract is ambiguous, the
Court may consider the parties’ interpretations and admit extraneous parol evidence4 to
determine the true meaning of the instrument. National Union Fire Insurance Co. of
Pittsburgh, PA v. CBI Industries, Inc., 907 S.W.2d 517, 520 (Tex. 1995).
A term left poorly defined or altogether undefined by a contract can create an
ambiguity in that contract. See, e.g., Quality Infusion Care, Inc. v. Health Care Service
Corp., 224 S.W.3d 369, 379–80 (Tex. App.—Houston [1st Dist.] 2006, no pet.) (“This
case involves the meaning of the contractual term ‘Provider.’ . . . Based on the language
employed, neither QIC’s interpretation of the contract nor that of appellees is any less
reasonable.”); Healthcare Cable Systems, Inc. v. Good Shepherd Hospital, Inc., 180
S.W.3d 787, 791–92 (Tex. App.—Tyler 2005, no pet.) (“[F]rom our reading of the
sentence by which the parties intended to define the term ‘Operational Date,’ we
conclude that the term is fairly susceptible of more than one construction.”). To avoid
that outcome, “Texas courts often resort to the use of external references such as
dictionaries to determine [a contractual] term’s plain, ordinary, and generally accepted
Distinguishing “evidence of surrounding circumstances,” which may be considered when a
contract is unambiguous, from “parol evidence,” which may not, can be extremely difficult. The
Texas Supreme Court has helped to sharpen the dividing line by explaining that the parol
evidence rule “does not prohibit consideration of surrounding circumstances that inform, rather
than vary from or contradict, the contract text.” Houston Exploration Co. v. Wellington
Underwriting Agencies, Ltd., 352 S.W.3d 462, 469 (Tex. 2011). Such “surrounding
circumstances” include “the commercial or other setting in which the contract was negotiated
and other objectively determinable factors that give a context to the transaction between the
parties.” Id. (quotation marks omitted).
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meaning.” Mescalero Energy, Inc. v. Underwriters Indemnity General Agency, Inc., 56
S.W.3d 313, 320 (Tex. App.—Houston [1st Dist.] 2001, pet. denied). “In particular, a
specialized industry or trade term may require extrinsic evidence of the commonly
understood meaning of the term within a particular industry.” Id.; see also, e.g., Heritage
Resources, Inc. v. NationsBank, 939 S.W.2d 118, 121–22 (Tex. 1996) (“[W]e find that
applying the trade meaning of royalty and market value at the well renders the postproduction clauses surplusage as a matter of law. . . . Royalty is commonly defined as the
landowner’s share of production, free of expenses of production[, and m]arket value at
the well has a commonly accepted meaning in the oil and gas industry.”); Ramsay v.
Maryland American General Insurance Co., 533 S.W.2d 344, 346 (Tex. 1976) (“Most of
the insurance cases from other states involving this same exclusionary provision apply
this meaning of ‘commercial.’”). But even the meaning of a technical term can present a
jury question if reference to extrinsic evidence does not yield a settled definition.
Mescalero, 56 S.W.3d at 318, 322–25 (holding that summary judgment was inappropriate
when “a commonly cited oil and gas dictionary” established one reasonable definition of
the term “formation” and the affidavit of an expert with “extensive education and
experience in the oil and gas industry” established another reasonable definition); Startex
Drilling Co., Inc. v. Sohio Petroleum Co., 680 F.2d 412, 415–17 (5th Cir. 1982)
(applying Texas law) (holding that the district court properly submitted the case to the
jury when the parties “presented plausible evidence to support their differing versions as
to the meaning and effect” of the terms “loss of circulation” and “normal circulation”)
(“[T]he undefined technical terms on which the contract’s application to the present
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dispute depends convey little meaning without explanation. . . . Thus, it was proper to
submit to the jury the evidence from both sides as to the meaning attached to these
technical terms by the parties, and by the industry.”).
III.

ANALYSIS

Applying the legal standards outlined above to the license agreement’s nochallenge clause, the Court finds that the no-challenge clause is clear enough to be
enforceable as a matter of public policy but not clear enough to be construed as a matter
of law. Accordingly, Transocean’s breach of contract action, and the construction of the
“challenge the . . . scope of any claim” language in the no-challenge clause, must be
submitted to the jury.
a. Is the no-challenge clause enforceable?
Under Federal Circuit precedent, the license agreement’s no-challenge clause is
enforceable as a matter of public policy. In relevant part, the clause reads:
Noble Licensee covenants that it will not participate as a party or
financially support a third party in any administrative or court proceeding
or effort in the world to invalidate, oppose, nullify, reexamine, reissue or
otherwise challenge the validity, enforceability, or scope of any claim of the
Licensed Patents.
Dkt. 133-1 at p. 5; Dkt. 94 at p. 8.
The closest analogues to this language in the Federal Circuit caselaw appear to be
clauses in the settlement agreements discussed in Diversey and Flex-Foot. In Diversey,
the parties settled a patent infringement lawsuit, and the settlement agreement provided
that the accused infringer would not “directly or indirectly aid, assist, or participate in any
action contesting the validity” of the patents at issue. Diversey, 191 F.3d at 1351–52.

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Later, the patent holder sued the accused infringer again for patent infringement over
different products that indisputably infringed on the same patents. Id. The Federal Circuit
affirmed a summary judgment in favor of the patent holder, holding that the accused
infringer, by entering into the prior settlement agreement, had “waive[d] . . . the
invalidity defense as to future accused products” and “surrendered its right to challenge
the validity of the patents in any context.” Id. In Flex-Foot, the parties settled two patentrelated lawsuits. The settlement agreement in the second lawsuit provided that the
accused infringer would not “challenge or cause to be challenged, directly or indirectly,
the validity or unenforceability, or scope of the [patents] in any court or tribunal, or
before the United States Patent and Trademark Office or in any arbitration proceeding.”
Flex-Foot, 238 F.3d at 1364. Additionally, the settlement agreement in the second lawsuit
provided that the accused infringer “waive[d] any and all invalidity and unenforceability
defenses in any future litigation, arbitration, or other proceeding.” Id. When a third
lawsuit between the parties went to arbitration, the accused infringer attempted to raise an
invalidity defense. Id. The district court rejected the accused infringer’s attempt to raise
the invalidity defense and granted the patent holder’s motion to confirm the arbitration
award in the patent holder’s favor. Id. In affirming the district court, the Federal Circuit
held that the accused infringer had voluntarily executed a “clear and unambiguous waiver
of future challenges to the validity of the [patent]” and was therefore “contractually
estopped from challenging the validity of the [patent.]” Id. at 1370.
Here, Transocean and Noble settled a patent infringement lawsuit involving the
patents-in-suit by entering into the license agreement. In the license agreement’s no14 / 20

challenge clause, Noble agreed that “it w[ould] not participate as a party or financially
support a third party in any administrative or court proceeding or effort in the world to . .
. challenge the . . . scope of any claim of the [patents-in-suit]” (Dkt. 133-1 at p. 5; Dkt. 94
at p. 8). Under Diversey and Flex-Foot, the no-challenge clause is clear and unambiguous
enough to waive future challenges to the scope of any claim of the patents-in-suit.
b. Can the no-challenge clause be construed as a matter of law?
Unfortunately, while it is clear that Noble waived the right to challenge the scope
of the claims of the patents-in-suit in the license agreement, the meaning of the language
“challenge the . . . scope of any claim” is uncertain and doubtful, and the language is
reasonably susceptible to more than one meaning. The Court holds that the language is
ambiguous under Texas law.
Transocean alleges three specific breaches of the license agreement’s bar on future
challenges to claim scope:
(1) In the briefing on its motion for summary judgment on the basis of
noninfringement, Noble, citing instances in which Transocean allegedly
distinguished prior art by claiming that floating rigs need motion
compensation equipment to advance tubular members to the seabed,
argued that “the principles of disclaimer, estoppel, and basic fairness”
should prevent Transocean from arguing in this lawsuit that a floating
rig without motion compensation equipment is capable of advancing
tubular members to the seabed (Dkt. 76 at pp. 24–27; Dkt. 83 at pp. 16–
21).
(2) In its claim-construction briefing, Noble argued that the phrase “to the
seabed and into the body of water to the seabed” in claim 17 of one of
the patents-in-suit was “nonsensical” and should be construed to mean
“to the seabed and into the bed of the body of water,” a proposed
construction that Transocean contends was an attempt to narrow the
scope of the claim (Dkt. 53 at pp. 32–34).

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(3) In the briefing on its motion for summary judgment on the basis of
noninfringement, Noble, citing instances in which Transocean allegedly
distinguished prior art by differentiating preassembly of tubular string
portions from drilling activities and operations, argued that “the
preassembly of tubular string portions is not itself a drilling activity [or
a] drilling operation” (Dkt. 76 at pp. 14–20; Dkt. 83 at pp. 10–15; Dkt.
116 at pp. 8–14).
Transocean contends that the no-challenge clause prohibits Noble from doing two
things exemplified by those alleged breaches: (1) arguing that Transocean disavowed
claim scope by distinguishing prior art (breaches one and three); and (2) proposing a
construction of previously construed claim language that narrows the scope of the claim
(breach two)5 (Dkt. 132 at pp. 11–15). The license agreement’s language and the
summary judgment record do not conclusively affirm or refute Transocean’s contention.

With regard to alleged breach two, the parties vehemently disagree about whether the “to the
seabed and into the body of water to the seabed” language had in fact been previously construed
(Dkt. 136 at pp. 15–17; Dkt. 137 at pp. 27–29). It appears that, when this lawsuit was initiated,
Judge Rosenthal had, in other cases, previously given other pertinent language in Claim 17 a
construction that was inconsistent with Noble’s proposed construction of “to the seabed and into
the body of water to the seabed” in this case (Dkt. 137-3 at p. 3, 24, 37; Dkt. 137-4 at pp. 3, 23,
35). Regardless, in her claim construction ruling in this case, Judge Atlas found that Noble’s
proposed construction of “to the seabed and into the body of water to the seabed” deviated from
the phrase’s plain language:
5

Noble argues that this is a typographical error and should read “into the bed of the
body of water.” Although the Court agrees that the phrase “to the seabed and into
the body of water to the seabed” is redundant, a Court cannot correct a patent
unless the error is evident from the face of the patent. The Court does not find that
the questioned language, although duplicative, is an erroneous statement of the
patent drafter’s intent. Therefore, the Court construes the language as written.
Further, there is insufficient indication that Noble’s proposed construction is
warranted. As a result, the Court concludes that the “second tubular advancing
station” is an assembly of equipment that is capable of advancing tubular
members to the seabed.
...

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As explained at the outset of this opinion, neither the license agreement nor the
balance of the summary judgment record contains any language clarifying what the
license agreement means when it refers to “challeng[ing] the . . . scope” of a patent claim.
No helpful definitions are provided in the license agreement; and the emails in the
summary judgment record discussing the license agreement never mention challenges to
the scope of claims, even though they contain passages specifically addressing challenges
to patent validity and enforceability. Moreover, the field of patent law is specialized and
highly technical, yet the summary judgment record is devoid of extrinsic evidence
showing the commonly understood meaning, if there is one, of the language “challenge
the scope of patent claims” in agreements settling patent infringement lawsuits. Flex-Foot
and Diversey provide some commercial context;6 those opinions specifically discuss the
invalidity and unenforceability defenses, which under 35 U.S.C. § 282 “shall be pleaded”
if asserted, and consequently would lead the Court to definitively construe the license
agreement as barring Noble from pleading invalidity and unenforceability defenses. But
35 U.S.C. § 282 does not mention claim scope, and no judicial opinion the Court could
locate provides any interpretive help. The available contextual evidence simply does not
There is no requirement that the second tubular advancing station in Claim 17 of
the ‘069 patent have the capability of advancing tubular members “into” the
seabed.
Dkt. 68 at pp. 21–22 (emphasis added; some quotation marks and a citation
removed).
On this summary judgment record, the language “challenge the scope of patent claims” in the nochallenge clause can reasonably be construed to prohibit proposing a construction that deviates
from the plain language of a claim in a way that narrows the scope of that claim, even if the
claim language had not been previously construed.
6
The parties’ execution of the license agreement predates Baseload. In any event, Baseload
would not materially enhance the context already provided by Flex-Foot and Diversey.
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answer the question of whether Noble’s actions in this lawsuit constituted impermissible
challenges to claim scope.
Since reference to the available contextual evidence does not yield a settled
definition of the language “challenge the scope of patent claims,” the meaning of the
language is uncertain and doubtful, and the language is reasonably susceptible to more
than one meaning. The parties’ arguments confirm as much. Noble’s interpretation of the
no-challenge clause is strictly formalistic. According to Noble, the list of words—
"invalidate, oppose, nullify, reexamine, [and] reissue”—immediately preceding the
phrase “or otherwise challenge” in the no-challenge clause “references affirmative
procedural efforts to change the legal status of Transocean’s patents” (Dkt. 133 at p. 14).
Noble gives as examples of such affirmative challenges a motion for summary judgment
of invalidity of certain claims (“invalidate”); opposition proceedings filed before the
European Patent Office (“oppose”); a foreign “nullity action” of the sort mentioned in
Albert v. Kevex Corp., 729 F.2d 757, 761 (Fed. Cir. 1984) (“nullify”); a request for
reexamination under 35 U.S.C. § 302 (“reexamine”); and a protest against an application
for reissue of a patent as discussed in In re Mettke, 570 F.3d 1356, 1358 (Fed. Cir. 2009)
(“reissue”) (Dkt. 133 at p. 14). Under the rule of ejusdem generis,7 Noble argues,
“’otherwise challenge’ must refer to actions of the same kind as procedural efforts to

Texas courts apply the statutory construction aid of ejusdem generis to the construction of
contracts. Barnett v. Aetna Life Insurance Co., 723 S.W.2d 663, 665–66 (Tex. 1987). The Texas
Supreme Court has articulated the rule as follows: “When general words follow specific,
enumerated categories, we limit the general words’ application to the same kind or class of
categories as those expressly mentioned.” City of Houston v. Bates, 406 S.W.3d 539, 545 (Tex.
2013).
7

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invalidate, oppose, nullify, reexamine, or reissue patents” (Dkt. 133 at p. 14). According
to Noble, the term “challenge” could plausibly encompass, for instance, “inter partes
review (IPR) petition procedures . . . , amicus curiae challenges, or special challenge
procedures before foreign tribunals” but does not reach any of Noble’s conduct in this
lawsuit (Dkt. 133 at p. 15). Noble’s interpretation of the license agreement’s no-challenge
clause is reasonable.
Transocean counters Noble’s interpretation of the no-challenge clause by pointing
out that the list of words—"invalidate, oppose, nullify, reexamine, [and] reissue”—
immediately preceding the phrase “or otherwise challenge” in the no-challenge clause is
“a list of verbs[,]” not an actual “list of procedures” (Dkt. 137 at p. 16) (emphasis in
Transocean’s brief). According to Transocean, Noble is improperly trying to cabin what
was intended to be a “broader clause” designed “to streamline any and all future patent
litigation between Transocean and Noble by preventing challenges to the claim scope of
Transocean’s patents” (Dkt. 137 at p. 21). Transocean argues that, under the no-challenge
clause, “Noble was bound not to invoke doctrines designed for the express purpose of
limiting the scope of claims that had already been construed in this or other cases or to
take a position that is clearly inconsistent with the language of a prior construction” (Dkt.
137 at p. 18). Transocean notes that it provided substantial consideration for the nochallenge promise: when the parties signed the license agreement to settle the Clyde
Boudreaux lawsuit, Transocean discounted its normal initial licensing fee from $15
million to $4 million in exchange for the no-challenge promise from Noble (Dkt. 132 at
p. 5; Dkt. 138-3 at p. 2). Transocean’s interpretation of the license agreement’s no19 / 20

challenge clause is also reasonable. Although it seems highly unlikely that Noble would
sign away the rights to engage in the conduct that led Transocean to sue it for breach of
contract—particularly the right to cite statements made by Transocean after the parties
executed the license agreement as evidence of claim scope disavowal—the language of
the license agreement and the summary judgment record do not foreclose such an
interpretation. In the end, neither party has established entitlement to judgment as a
matter of law. Transocean’s breach of contract claim will go to the jury.8
IV.

CONCLUSION

The parties’ motions for summary judgment (Dkt. 132 and Dkt. 133) are
DENIED.
SIGNED at Houston, Texas, on April 2, 2020.

_______________________________
GEORGE C. HANKS, JR.
UNITED STATES DISTRICT JUDGE

In its response to Transocean’s motion for summary judgment, Noble discusses the penalty
defense to enforcement of the liquidated damages clause (Dkt. 136 at pp. 23–27). The Court
holds that Noble waived its penalty defense. Under Texas law, the defense of penalty is an
affirmative defense that, if not pled, is waived unless it is “apparent on the face of the [plaintiff’s
complaint] and established as a matter of law.” Phillips v. Phillips, 820 S.W.2d 785, 789 (Tex.
1991). “The party asserting that a liquidated damages clause is an unenforceable penalty . . .
bears the burden of proof.” GPA Holding, Inc. v. Baylor Health Care System, 344 S.W.3d 467,
475 (Tex. 2011). Noble did not plead the penalty defense and has not shown that the defense is
apparent on the face of Transocean’s pleadings and established as a matter of law.
8

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