Judge Profile

Christopher M. Kaiser

65 IP cases indexed. Covers patent matters.

Cases Presided Over

65 cases indexed | Page 2 of 3

patent instituted

Google LLC v.138 East LCD Advancements Limited et al.

· IPR2024-00959

Google LLC successfully navigated the institution phase of an IPR against 138 East LCD Advancements Limited et al., leading to a finding of reasonable likelihood of prevailing on at least one challenged claim. The Board found that petitioner's combination of prior art references Kuwata and Fisher, along with Ohga, supported grounds for both anticipation (102) and obviousness (103).

patent instituted

BOE Technology Group, Co. Ltd. v.138 East LCD Advancements Limited et al.

· IPR2024-00973

BOE Technology Group successfully navigated the initial hurdles in its IPR against 138 East LCD Advancements Limited, leading to the Board instituting the challenge. The Board found sufficient preliminary evidence across multiple grounds of obviousness (102 and 103) concerning liquid crystal display protective circuits.

patent denied

Innoscience America, Inc. et al. v.Infineon Technologies Austria AG

· IPR2024-00975

The PTAB denied the institution of an IPR against Infineon's patent, finding that Innoscience failed to demonstrate a reasonable likelihood of prevailing on obviousness grounds.

patent denied

BOE Technology Group Co., Ltd. v.138 East LCD Advancements Limited et al.

· IPR2024-00976

BOE Technology Group Co., Ltd.'s IPR challenge against the LCD display patent was denied by the PTAB, finding that the petitioner failed to provide sufficient rationale for combining prior art references. The Board determined the obviousness arguments were conclusory and lacked objective support.

patent denied

BOE Technology Group Co., Ltd. v.138 East LCD Advancements Limited et al.

· IPR2024-00977

The PTAB denied institution of the IPR petition filed by BOE Technology Group Co., Ltd. against 138 East LCD Advancements Limited. The denial was based on Petitioner's failure to provide sufficient evidence for grounds of anticipation and obviousness over Fujikawa, Kang, and Ikeguchi.

patent instituted

CommScope Technologies LLC et al. v.Belden Canada ULC et al.

· IPR2024-01218

CommScope Technologies LLC successfully petitioned to institute IPR against Belden Canada ULC's patent, asserting obviousness and anticipation over prior art references including Fukui. The Board found Petitioner’s arguments persuasive regarding the technical scope of the modular fiber optic cassette system.

patent instituted

CommScope Technologies LLC et al. v.Belden Canada ULC et al.

· IPR2024-01227

CommScope Technologies LLC successfully petitioned to challenge U.S. Patent No. 11,435,542 B2 before the PTAB, leading to institution of trial. The petition asserted grounds of anticipation (102) and obviousness (103) over prior art references Fukui, Sauter, and Sedor.

patent instituted

CommScope Technologies LLC et al. v.Belden Canada ULC et al.

· IPR2024-01228

CommScope Technologies LLC successfully convinced the PTAB that U.S. Patent No. 11,656,422 B2 is likely unpatentable over prior art references Fukui and Sedor. The Board instituted the IPR on all 47 challenged claims based on grounds of anticipation and obviousness.

patent denied

Ecto World, LLC d/b/a Demand Vape et al. v.RAI Strategic Holdings, Inc. et al.

· IPR2024-01280

The PTAB denied Ecto World's petition to institute IPR against RAI Strategic Holdings regarding a tobacco-containing smoking article, citing the petitioner failed to demonstrate material error despite using previously presented prior art.

patent denied

Ecto World, LLC d/b/a Demand Vape et al. v.RAI Strategic Holdings, Inc. et al.

· IPR2024-01280

The PTAB denied institution for the IPR challenge against RAI Strategic Holdings, Inc., citing efficiency concerns. The Board found that despite arguments regarding material error and prior art relevance, denying institution served the integrity of the system given the parallel ITC investigation.

patent instituted

CommScope Technologies LLC et al. v.Belden Canada ULC et al.

· IPR2024-01382

CommScope Technologies LLC successfully petitioned to institute IPR proceedings against Belden Canada ULC et al., challenging claims 1-30 of patent 11740423. The Board found a reasonable likelihood of success based primarily on the Fukui prior art, focusing on modular cassette configurations.

patent instituted

Shenzhen Kangvape Technology Co., Ltd. v.RAI Strategic Holdings, Inc. et al.

· IPR2024-01406

Shenzhen Kangvape Technology Co., Ltd. successfully challenged RAI Strategic Holdings, Inc.'s patent on electrically heated smoking articles. The PTAB instituted the IPR after finding a reasonable likelihood of prevailing on claims based on anticipation and obviousness over prior art references like Morgan and Takeuchi.

patent denied

Shenzhen Kangvape Technology Co., Ltd. v.RAI Strategic Holdings, Inc. et al.

· IPR2024-01406

The PTAB denied institution of an IPR challenge against a vaporizing smoking article patent, citing the existence and advanced stage of a parallel ITC investigation.

patent denied

Innoscience America, Inc. et al. v.Infineon Technologies Americas Corp.

· IPR2025-00010

The PTAB denied Innoscience America's petition to institute IPR against Infineon Technologies regarding patent 9070755. The Board found that factors favoring discretionary denial, such as overlap with a parallel ITC investigation, outweighed arguments for institution.

patent instituted

Innoscience America, Inc. et al. v.Infineon Technologies Americas Corp.

· IPR2025-00094

The PTAB granted institution of IPR for Innoscience America against Infineon Technologies, challenging 16 claims related to merged cascode transistors. The Board found a reasonable likelihood of unpatentability based on prior art combinations.

patent instituted

Innoscience America, Inc. et al. v.Infineon Technologies Americas Corp.

· IPR2025-00175

The PTAB instituted the IPR challenge by Innoscience America against Infineon Technologies' patent covering semiconductor devices. The Board found a reasonable likelihood of anticipation for several claims over the prior art reference Usui, while also finding merit in the obviousness arguments.

patent instituted

Shenzhen Tuozhu Technology Co., Ltd. et al. v.Stratasys, Inc. et al.

· IPR2025-00311

The PTAB institution decision found Petitioner's arguments of obviousness under 35 U.S.C. § 103 sufficiently meritorious to proceed. The Board specifically noted that Claim 1 was likely unpatentable over Mazumder and Mori, adopting the petitioner’s definition of ordinary skill in the art.

patent instituted

Shenzhen Tuozhu Technology Co., Ltd. et al. v.Stratasys, Inc. et al.

· IPR2025-00321

The PTAB decided to institute the IPR petition challenging Patent No. 9,421,713 B2 based on grounds of anticipation and obviousness in additive manufacturing. The Board found a reasonable likelihood that Claim 1 is unpatentable as anticipated by prior art (Boyer).

patent instituted

Albany International Corp. v.Voith Patent GmbH

· IPR2025-01116

Albany International Corp. successfully instituted IPR proceedings against Voith Patent GmbH regarding patent number 11261566, challenging all 15 claims based on obviousness (103). The Board found sufficient evidence to support the Petitioner's arguments that combinations of prior art references render the claimed features predictable in textile manufacturing.

patent denied

Ascend Elements, Inc. v.Duesenfeld GmbH

· PGR2025-00037

Ascend Elements, Inc.'s petition against Duesenfeld GmbH's battery recycling patent was denied by the PTAB. The Board found that the Petitioner failed to demonstrate unpatentability based on obviousness or indefiniteness across all challenged claims.

patent all challenged claims unpatentable

Apple, Inc. v.THL Holding Company, LLC

· IPR2024-00400

Apple’s IPR against THL Holding’s patent 11,350,246 concluded with an adverse judgment after the patent owner disclaimed all challenged claims. The Board entered judgment against claims 20‑27 and terminated the proceeding.

patent terminated or settled

Arm Ltd. v.ICPillar LLC

· IPR2024-00476

Arm Limited and ICPillar LLC jointly moved to terminate an IPR after reaching a settlement. The Board granted the termination and treated the settlement agreement as confidential business information.

patent terminated or settled

Arm Limited v.ICPillar LLC

· IPR2024-00566

Arm Limited and ICPillar LLC settled their dispute over U.S. Patent 9,367,657, leading to a joint motion that terminated the inter partes review. The Board granted confidentiality for the settlement agreement and dismissed the proceedings.

patent all challenged claims upheld

CISCO SYSTEMS, INC. et al. v.InfoExpress Inc.

· IPR2024-00677

Cisco and Fortinet successfully defended claims of InfoExpress’s network‑access control patent in IPR2024‑00677; the Board found no unpatentable subject matter.

patent terminated or settled

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

· IPR2025-00280

Berkshire Hathaway Energy and Pacificorp continued their IPRs after MidAmerican Energy settled the dispute. The Board terminated the IPRs as to MidAmerican, treating the settlement as confidential, while leaving the remaining petitioners' cases open.

patent terminated or settled

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

· IPR2025-00281

Berkshire Hathaway Energy and Pacificorp’s IPRs against BirchTech were terminated for MidAmerican Energy after the parties settled, with the settlement agreement kept confidential.

patent denied

Innoscience America, Inc. et al. v.Infineon Technologies Austria AG

· IPR2025-00721

The PTAB denied Innoscience's petition to institute IPR against Infineon's 9,899,481 B2 patent covering compound semiconductor power components, finding no reasonable likelihood of success on any of the 17 challenged claims.

patent instituted

Clearwater Paper Corporation v.--

· IPR2025-00878

The PTAB granted institution of IPR for Clearwater Paper Corporation against Graphic Packaging International LLC, challenging claims related to biodegradable paper cups based on prior art references Cleveland and Nakagawa.

patent terminated or settled

TransCore LP v.Hand Held Products, Inc.

· IPR2024-00391

TransCore and Hand Held Products entered a settlement that resolved all disputes over three patents. The parties jointly moved to terminate the IPRs, and the Board granted the termination and kept the settlement confidential.

patent terminated or settled

TransCore, LP v.Hand Held Products, Inc.

· IPR2024-00443

TransCore and Hand Held Products settled their IPR dispute over patents 8,141,784; 8,919,654; and 10,452,968, leading the PTAB to terminate the proceedings before a trial was instituted.

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