- Weatherford U.S., L.P v. Halliburton Energy Services, Inc.Some claims unpatentablePTAB · Dec 9, 2025 · IPR2024-00990 · APJ Brent M Dougal · IPR · Final written decision
Claims 11–12 and 14–20 are unpatentable; claims 1–10 and 21–23 are not shown unpatentable. Substitute claims 29–37 are unpatentable, and the motion to amend is denied as to them.
RulingsFinal written decision- Skill levelSkill level petitioner adoptedDecided for petitioner
“The level of skill is uncontested. Patent Owner adopts the level of skill identified by Petitioner as: [at] the time of the alleged invention in 2018, a POSITA[2] would have had a B.S. degree in mechanical or petroleum engineering or a similar technical discipline, with at least five years of experience in oil or gas well drilling, completion, and/or subsurface production operations or in technical support of such operations including at least some experience in unconsolidated formations utilizing sand control methods and means. Also,” slip op. at 8
- Obviousness (§103) › Graham factors (scope of art, differences, level of skill)UnpatentableNot shown unpatentableMixed
“on embodiments of Yeh with concentric sand screens having nine shunt tubes (six transport tubes and three packing tubes) (Yeh Figures 4A–B) and eccentric sand screens with four shunt tubes (two transport tubes and two packing tubes) (Yeh Figures 8A, 8C). See Pet. 32–37, 39, 41–43. Yet, Petitioner’s reasoning as to why “a higher-pressure shunt tube assembly necessitated greater wall thickness” rests on an unspoken one to one comparison between the shunt tubes of the different systems. See id.; see also Ex. 1003 ¶¶ 291–297 (Petitioner’s declarant comparing possible transport tubes of different pressure regions without considering or addressing any difference in the number of transport tubes). However, the embodiments relied on by Petitioner have different numbers of shunt tubes, and thus the greater wall thickness does not appear to be “necessitated” in the way inferred by Petitioner. Further, Petitioner’s analysis would seem to be most appropriate when comparing two concentric sand screens for different pressure regions, or two eccentric sand screens for different pressure regions. relies on Yeh’s teachings related to a horizontal well bore of 5000 feet for the “concentric screen → crossover tool → eccentric screen” arrangement, as well as, for why the concentric screen needs to be rated for a high pressure. Pet. 32–37, 39, 41–43. Petitioner also refers to these features for why one of skill in the art would combine the teachings of Yeh and Yeh2. Id. at 32. However, on cross-examination, Petitioner’s declarant agreed that it is concentric sand screens having a 6x3 shunt tube design that would provide the noted benefits of being rated for a higher pressure and being more robust (as relied on in the Petition), as compared to eccentric sand screens. Ex. 2013, 42:20–43:8; Sur-reply 4–5. This also exposes another issue with Petitioner’s arguments. Though Petitioner identifies that one of skill in the art would be aware that material choice, wall thickness, and pipe diameter all impact burst pressure of a pipe (Pet. 42 (citing Ex. 1017, 24 (Equation (14))), the Petition essentially ignores the fact that the claims do not require a single pipe in isolation. The claims require two shunt tube assemblies, each surrounding a base pipe within a wellbore. It is uncontested that a wellbore provides a confined space for such a system and thus any change in wall thickness of one pipe can result in a significant impact in the function of the other pipes. We find the testimony of Petitioner’s declarant (see, e.g., Ex. 1003 ¶¶ 290–297) unpersuasive when discussing wall thickness because it focusses on basic considerations of a standalone pipe, without sufficient consideration of the claimed completion assembly with its required pipe and tube structure. PO Resp. 20–26.” slip op. at 17
- Strike new argumentNew argument disregardedDecided for patent owner
“In response to Patent Owner’s argument concerning Yeh’s embodiments relied on in the Petition, Petitioner argues for the first time that Patent Owner’s declarant “conceded, Yeh discloses that both concentric and 47:19–48:21). Petitioner does not provide a citation to Yeh or a citation to where the Petition relies on the same number of shunt tubes between concentric and eccentric screens. The deposition cited by Petitioner discusses Yeh at column 16, lines 26 through 35. However, the Petition does not cite or rely on these teachings of Yeh. Thus, we decline to consider this late argument.4 See 35 U.S.C. § 312(a)(3) (requiring the petition to identify “with particularity . . . the grounds on which the challenge to each claim is based, and the evidence that supports the grounds”); 37 C.F.R. § 42.104(b)(5).” slip op. at 18
- Obviousness (§103) › Motivation to combine / reasonable expectation of successMotivation foundUnpatentable
“Thus, we agree with Petitioner that the combination of Yeh and Yeh2 teaches determining the shunt tube system operating pressures associated with the distal end of the production zone, but also more generally, determining the operating pressures along the entire production zone. With this knowledge of the system operating pressures, Petitioner argues that one of skill in the art would have selected eccentric screens for the distal end of the production zone “at any point at which the slurry pressure dropped below the pressure capacity of the eccentric screen shunt tubes.” Pet. 66 (citing Ex. 1005, 30:16–20; Ex. 1003 ¶ 388). In other words, knowing that the pressure decreases as you approach the toe, Yeh’s low-pressure rated eccentric screens could be used from some point prior to and covering the toe. determined pressure.” PO Resp. 37–38. We disagree. As discussed above, the record supports Petitioner’s position that one of skill in the art would have “understood the need to determine the shunt tube system operating pressure throughout the horizontal wellbore.” Ex. 1003 ¶ 383; see also Pet. 64–65. We find convincing Petitioner’s argument that one of skill with this understanding of the system pressures would select a shunt tube system rated to not only address the distal end, but also to address the needs of the adjacent region, so long as the pressure rating supported such a selection. See Pet. 65–67; Ex. 1003 ¶¶ 385–388.” slip op. at 22
Patent outcomesUS 11,333,007 mixedClaim construction§ 101 eligibility§ 103 obviousness§ 112 disclosurecites GrahamPatents in suitUS 11,333,007 - PTAB · May 12, 2015 · IPR2014-00242 · APJ Peter P Chen · IPR · Final written decision
The Board canceled claims 1–3, 5, and 6 and denied substitute claims 7–11 because the Patent Owner failed to establish written-description support for claim 10 and patentability over prior art for claims 7–9 and 11.
RulingsFinal written decision- PTAB / AIA Trials › Motions to amend / substitute claimsMotion to amend granted in partGranted in part
“Unlike examination, entry of the proposed substitute claims in an inter partes review is not automatic. As the moving party, Patent Owner must establish that it is entitled to the requested relief. See 37 C.F.R. § 42.20(c). In its Motion to Amend, Patent Owner bears the burden to show, inter alia, that a reasonable number of substitute claims is proposed, there is no broadening of scope, the proposed claims are supported adequately by the written description of the application as filed originally, and the proposed claims are patentable over the prior art. See 37 C.F.R. § 42.121; Idle Free Sys. Inc. v. Bergstrom, Inc., Case IPR2012-00027, slip op. at 5–6 (PTAB June 11, 2013) (Paper 26) (“Idle Free”). We address each of these requirements in turn.” slip op. at 10
- 112 supportDenied
“its Motion to Amend to set forth “[t]he support in the original disclosure of the patent for each claim that is added or amended,” and “[t]he support in an earlier-filed disclosure for each claim for which benefit of the filing date of the earlier filed disclosure is sought.” The test for written description support is “whether the disclosure of the application relied upon reasonably conveys to those skilled in the art that the inventor had possession of the claimed subject matter as of the filing date.” Ariad Pharm., Inc. v. Eli Lilly & Co., 598 F.3d 1336, 1351 (Fed. Cir. 2010). The purpose of the written description requirement is to convey with reasonable clarity to those skilled in the art that, as of the filing date sought, applicant was in possession of the invention as now claimed. Vas-Cath, Inc. v. Mahurkar, 935 F.2d 1555, 1563–64 (Fed. Cir. 1991).” slip op. at 12
- ScopeDecided for patent owner
“2. No Broadening of Scope Proposed substitute claims in an inter partes review “may not enlarge the scope of the claims of the patent.” 35 U.S.C. § 316(d)(3); see 37 C.F.R. § 42.121(a)(2)(ii). In its Motion to Amend, Patent Owner proposes claim 7 as a substitute for claim 1, claim 8 as a substitute for claim 2, claim 9 as a substitute for claim 3, claim 10 as a substitute for claim 5, and claim 11 as a substitute for claim 6. Mot. 1–5. Each claim includes all of the limitations of the corresponding challenged claim for which it is a substitute, and adds additional limitations. Id. No limitations from the challenged claims were deleted in the proposed substitute claims. Patent Owner asserts that the proposed substitute claims do not enlarge the scope of the claims of the ’047 patent. See Mot. 1. Petitioner does not dispute this assertion (“patent owner’s proposed substitute claims . . . add ancillary features”). Opp. 1. We are persuaded that each of the proposed substitute claims does not enlarge the scope of each of the challenged patent claims it intends to replace.” slip op. at 11
- Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)No construction neededOther
“In the Decision to Institute, we determined that no explicit construction was necessary for any of the claim terms beyond their ordinary and customary meanings. Dec. to Inst. 8–9. Neither party has challenged that determination, and based on the record adduced during trial, we see no reason to provide an express construction for any term. For the proposed substitute claims, Patent Owner states that: Like the terms in the original claims, all of [the newly added claim terms in the proposed substitute claims] are simple [claim terms] whose ordinary meaning applies and for which no construction is required, with the possible exception of “member” and “group.” As explained in the specification (Ex. 1) at 3:2–4, “The present invention comprises a method . . . for allowing on-line communications with members of a group of recipients for whom the invention has been implemented.” In the context of proposed independent claim [7], the claimed invention requires that “said first computer system storing information about said plurality of members in a database.” Thus, in the context of the proposed amended claims[,] a “group” is a group of a plurality of members for whom the first computer system has stored information in a database. Mot. 7. Petitioner does not propose alternative constructions for the claim terms “member” or “group.” We cannot discern how the constructions proffered by Patent Owner add any clarity to the terms “member” and “group,” which are simple and commonly understood terms. We decline to provide an express construction for either “member” or “group.”” slip op. at 8
Claim construction§ 101 eligibility§ 103 obviousnesscites AlicePatents in suitUS 8,499,047
Holdings, summaries, rulings, issues, outcomes, winners and claim constructions shown for a decision were generated by a large language model reading the opinion. They are a guide to the decision, not the decision. Confirm every one against the court's own text before relying on it. Outcomes read from the patent owner’s side. Party names are extracted from the decision and are missing on about 900 short Director denials and scans, which carry the trial number instead.