Judge Profile

Yang

52 IP cases indexed. Covers patent matters.

Cases Presided Over

52 cases indexed | Page 1 of 2

patent terminated or settled · Nov 2, 2025

Berkshire Hathaway Energy Company et al. v.MES, Inc.

· IPR2025-00422

The IPR against BirchTech’s patent was terminated for MidAmerican Energy Company after a settlement, while the proceeding remains open for Berkshire Hathaway Energy and PacificCorp.

patent terminated or settled · Nov 2, 2025

Berkshire Hathaway Energy Company et al. v.MES, Inc.

· IPR2025-00422

The PTAB granted a joint motion to terminate the IPR as to WEC Energy Group after the parties settled their dispute over Patent 10,668,430. The termination does not affect the remaining petitioners, and the proceeding continues against them.

patent terminated or settled · Nov 2, 2025

Berkshire Hathaway Energy Company et al. v.MES, Inc.

· IPR2025-00422

Berkshire Hathaway Energy and its affiliates settled an IPR against BirchTech, leading the Board to terminate the proceeding for two petitioners while keeping the case open for the remaining parties. The settlement agreement was treated as business‑confidential information.

patent instituted · Nov 2, 2025

Xencor, Inc. v.Merus N.V.

· IPR2025-00604

Xencor, Inc. successfully petitioned the PTAB to institute an IPR against Merus N.V.'s patent (9358286) concerning heterodimeric Ig-like molecules. The Board found sufficient evidence of unpatentability under 35 U.S.C. §§ 102 and 103, advancing the dispute into the substantive review phase.

patent instituted · Nov 2, 2025

Berkshire Hathaway Energy Company et al. v.MES, Inc.

· IPR2025-00422

The PTAB institution decision found a reasonable likelihood of prevailing for the Petitioners regarding claims covering flue gas pollutant removal. The Board addressed both anticipation and obviousness grounds, concluding that the combination of prior art references was sufficiently motivated to render the asserted claims unpatentable.

patent terminated or settled · Aug 4, 2025

PacifiCorp et al. v.MES, Inc.

· IPR2025-00718

The PTAB terminated the IPRs against MidAmerican Energy Company after a settlement with BirchTech, leaving the case open only against PacifiCorp.

patent terminated or settled · Aug 4, 2025

PacifiCorp et al. v.MES, Inc.

· IPR2025-00717

Utility companies and BirchTech settled multiple IPRs covering power‑grid patents. The Board treated the settlement agreements as confidential and terminated the IPRs as to the settling petitioners, leaving the remaining petitioners in the proceeding.

patent denied · Aug 4, 2025

PacifiCorp et al. v.MES, Inc.

· IPR2025-00718

The PTAB denied institution of an IPR for a mercury removal patent (10926218) after the Director remanded the case due to multiple concurrent petitions. The denial was based on following the Director's instruction to prioritize one petition over another.

patent instituted · Aug 4, 2025

PacifiCorp et al. v.MES, Inc.

· IPR2025-00717

PacifiCorp successfully challenged 26 claims of Birchtech Corp.'s patent (10926218) related to flue gas desulfurization, leading the PTAB to find a reasonable likelihood of prevailing on at least one claim. The Board concluded that combining prior art references was an obvious application of known techniques in mercury removal technology.

patent terminated or settled · Apr 3, 2025

PacifiCorp et al. v.MES, Inc.

· IPR2025-00425

Energy utilities settled their PTAB disputes with BirchTech, prompting the Board to terminate the IPRs for the settling parties and keep the settlement agreements confidential. Remaining petitioners stay in the proceeding.

patent instituted · Apr 3, 2025

PacifiCorp et al. v.MES, Inc.

· IPR2025-00425

The Board instituted the IPR petition against Patent No. 10589225, finding a reasonable likelihood of prevailing on multiple grounds. The institution decision addressed complex issues regarding real party in interest and written description support for genus claims related to flue gas treatment.

patent instituted · Apr 3, 2025

PacifiCorp et al. v.MES, Inc.

· IPR2025-00424

The PTAB granted institution for an IPR challenging claims related to mercury removal from flue gas using activated carbon sorbents. The Board found the Petitioner met a reasonable likelihood of prevailing standard, despite disputes over prior art reduction to practice.

patent denied · Mar 26, 2025

SeaSpine Holdings Corporation et al. v.Jackson, Roger

· IPR2025-00773

The PTAB denied an IPR petition filed by SeaSpine Holdings against Roger P. Jackson because the patent owner had disclaimed all challenged claims of U.S. Patent No. 11,399,873 B2.

patent terminated or settled · Mar 24, 2025

PacifiCorp et al. v.MES, Inc.

· IPR2025-00687

MidAmerican Energy settled its IPR against BirchTech’s ’370 patent, prompting the Board to terminate the case for MidAmerican while the proceeding remains active against PacifiCorp.

patent terminated or settled · Mar 24, 2025

PacifiCorp et al. v.MES, Inc.

· IPR2025-00688

Utility consortiums including PacifiCorp settled IPRs covering several power‑grid patents, resulting in the termination of the proceeding for two petitioners while the Board kept the case open for the remaining parties. The settlement agreement was designated business‑confidential.

patent denied · Mar 24, 2025

PacifiCorp et al. v.MES, Inc.

· IPR2025-00688

The PTAB denied institution of an IPR petition challenging a mercury removal patent (10933370) because the petitioner had filed a second, ranked petition on the same claims. The Board followed the Director's instruction to select only one petition.

patent instituted · Mar 24, 2025

PacifiCorp et al. v.MES, Inc.

· IPR2025-00688

The PTAB decided to institute the IPR petition against Birchtech Corp.'s '370 patent, finding that PacifiCorp et al. met the standard for reasonable likelihood of prevailing on all asserted grounds. The Board also addressed and rejected arguments from Patent Owner regarding written description and enablement issues concerning bromide compounds.

patent instituted · Mar 24, 2025

PacifiCorp et al. v.MES, Inc.

· IPR2025-00687

The PTAB instituted IPR on PacifiCorp's claims against Birchtech Corp. regarding flue gas desulfurization technology, overcoming a time-bar defense raised by the Patent Owner. The Board found Petitioner met the reasonable likelihood standard for institution across multiple grounds of anticipation and obviousness.

patent all challenged claims unpatentable · Jan 17, 2025

Padagis US LLC et al. v.Neurelis, Inc.

· IPR2025-00464

The PTAB held that all 36 claims of Neurelis’s intranasal benzodiazepine patent are obvious over prior art references Gwozdz, Meezan ’962, and Cartt ’784, rendering the patent entirely unpatentable.

patent denied · Jan 15, 2025

NeoGenomics Laboratories, Inc. v.Natera, Inc.

· IPR2025-00455

The PTAB denied NeoGenomics’s petition to institute an IPR against Natera’s 11,530,454 patent covering liquid‑biopsy methods. The Board found the prior art had already been considered and no material error existed. No trial will be held.

patent denied · Nov 4, 2024

Inari Agriculture, Inc. v.Pioneer Hi-Bred International, Inc.

· PGR2024-00023

The PTAB denied institution of Inari Agriculture's PGR against Pioneer Hi-Bred International regarding maize breeding claims. The Board found the Petitioner failed to demonstrate a reasonable expectation of success, specifically failing to adequately address the unique genotype (PH4CYJ) central to the patent.

patent instituted · Oct 24, 2024

Dr. Falk Pharma GmbH v.Ellodi Pharmaceuticals LP

· IPR2025-00056

Dr. Falk Pharma GmbH successfully challenged a pharmaceutical patent (11260061) in an IPR, showing a reasonable likelihood of prevailing on grounds of obviousness (§ 103). The Board's decision hinged on extensive claim construction, particularly defining 'adsorbed onto a pharmaceutically acceptable carrier.'

patent · Oct 10, 2024

QIAGEN Sciences, LLC v.Tecan Group AG

· IPR2025-00028

Tecan seeks Director Review to overturn the PTAB’s institution of QIAGEN’s IPR, arguing the Board abused discretion, over‑relied on expert testimony, and allowed duplicate petitions. The request targets the institution decision for patent No. 10,036,012 covering NGS genotyping methods.

patent instituted · Oct 10, 2024

QIAGEN Sciences, LLC v.Tecan Group AG

· IPR2025-00029

QIAGEN Sciences successfully petitioned to institute IPR proceedings against Tecan Genomics, challenging claims of U.S. Patent No. 10876108 based on obviousness (35 U.S.C. § 103). The Board found that the Examiner erred in relying solely on secondary considerations, adopting the Petitioner's view that combining Shapero and Delseny renders multiple claims obvious.

patent instituted · Oct 10, 2024

QIAGEN Sciences, LLC v.Tecan Group AG

· IPR2025-00028

QIAGEN Sciences successfully petitioned the PTAB against Tecan Genomics regarding claims related to Next-Generation Sequencing (NGS). The Board instituted review, finding a reasonable likelihood of prevailing on obviousness grounds.

patent instituted · Oct 10, 2024

QIAGEN Sciences, LLC v.Tecan Group AG

· IPR2025-00026

QIAGEN Sciences successfully convinced the PTAB to institute trial proceedings against Tecan Genomics, Inc. regarding a high-throughput sequencing patent (11098357). The Board found reasonable likelihood that claims 1 through 10 are unpatentable under both anticipation (§ 102) and obviousness (§ 103).

patent terminated or settled · Sep 30, 2024

Integrated DNA Technologies, Inc. et al. v.Tecan Group AG

· IPR2024-01506

Integrated DNA Technologies sought IPR of Tecan Genomics' patent covering nucleic acid technologies. The patent owner filed a terminal disclaimer of the entire patent, prompting the Board to grant an adverse judgment and terminate the proceeding.

patent instituted · Sep 30, 2024

Integrated DNA Technologies, Inc. et al. v.Tecan Group AG

· IPR2024-01506

The PTAB granted institution for an IPR challenging claims 1-16 of a nucleic acid analysis patent, finding reasonable likelihood of success. The Board rejected the Patent Owner's motion to deny based on prior art similarity, allowing the technical merits of anticipation and obviousness over Kivioja and Bielas to proceed to trial.

patent final · Sep 30, 2024

Illumina, Inc. v.Molecular Loop Biosciences, Inc.

· IPR2024-01419

The PTAB upheld the patentability of claims 1-9 for Molecular Loop Biosciences against Illumina. The Board rejected all grounds of anticipation and obviousness over prior art like Chee, finding that the required 'collapsing step' necessitates combining both target sequence and differentiator tag information.

patent final · Aug 21, 2024

Biofrontera Incorporated et al. v.Sun Pharmaceutical Industries, Inc.

· IPR2024-01312

The PTAB found all challenged claims unpatentable by a preponderance of the evidence. The Petitioner successfully argued that combining prior art references (Lundahl and Larsen) rendered the illuminator system obvious to a Person Having Ordinary Skill in the Art (POSITA).

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