Judge Profile

Michael T. Cygan

82 IP cases indexed. Covers patent matters.

Cases Presided Over

82 cases indexed | Page 2 of 3

patent instituted

Micron Technology, Inc. et al. v.Yangtze Memory Technologies Company, Ltd.

· IPR2024-00911

Micron Technology successfully petitioned to institute IPR proceedings against Yangtze Memory Technologies regarding claims related to 3D NAND memory technology. The Board found a reasonable likelihood of unpatentability for claim 10 based on Toyama's First Exemplary Structure, moving the case toward trial preparation.

patent denied

Micron Technology, Inc. et al. v.Yangtze Memory Technologies Company, Ltd.

· IPR2024-00912

Micron Technology, Inc. lost its request for rehearing after the PTAB denied institution of IPR against Yangtze Memory Technologies Company regarding NAND Flash memory patents.

patent denied

Roku, Inc. v.Anonymous Media Research Holdings, LLC

· IPR2024-01053

Roku, Inc.'s IPR challenge against Anonymous Media Research Holdings, LLC was denied by the PTAB, failing to meet the threshold for institution in all challenges. The Board rejected Petitioner's arguments regarding 'content offset,' requiring it to be relative to a reference point within the content.

patent denied

Roku, Inc. v.Anonymous Media Research Holdings, LLC

· IPR2024-01054

Roku's IPR against Anonymous Media Research Holdings was denied because the key prior art reference (Seet) lacked written description support for non-audio media, preventing it from qualifying as prior art to the challenged patent.

patent denied

Roku, Inc. v.Anonymous Media Research Holdings, LLC

· IPR2024-01055

Roku, Inc.'s IPR challenging Anonymous Media Research Holdings' content identification patent was denied by the PTAB. The Board found that Petitioner failed to demonstrate a reasonable likelihood of prevailing on its obviousness assertions against multiple prior art references.

patent denied

Roku, Inc. v.Anonymous Media Research Holdings, LLC

· IPR2024-01056

Roku, Inc.'s IPR challenge against Anonymous Media Research Holdings was denied by the PTAB after failing to meet institution standards on grounds of obviousness and novelty. The Board rejected arguments regarding 'content offset' data and content identification results disclosed in prior art references like Feininger and Ramaswamy.

patent denied

Roku, Inc. v.Anonymous Media Research Holdings, LLC

· IPR2024-01057

The PTAB denied Roku's request to institute IPR against the '848 patent, finding that Petitioner failed to establish a reasonable likelihood of prevailing. The denial hinged on the failure of the Petitioner to prove that key prior art (Seet) was entitled to its provisional filing date due to lack of written description support for non-audio media.

patent denied

Roku, Inc. v.Anonymous Media Research Holdings, LLC

· IPR2024-01058

Roku, Inc.'s IPR challenge against Anonymous Media Research Holdings was denied by the PTAB. The Board found Petitioner failed to demonstrate a reasonable likelihood of prevailing on its obviousness claims under 35 U.S.C. § 103.

patent denied

Cisco Systems, Inc. v.Scale Video Coding LLC

· IPR2024-01371

The PTAB denied Cisco Systems' IPR petition against Scale Video Coding LLC, finding the asserted claims were not reasonably likely to be unpatentable over prior art references. The decision focused on technical limitations regarding bandwidth identification in video routers.

patent denied

r-pac International Corporation v.Adasa Inc

· IPR2024-01416

The PTAB denied R-pac International Corporation's IPR challenge against Adasa Inc.'s RFID patent, finding that the prior art presented was cumulative to references already before the Office. The denial was based on Petitioner failing to show material Examiner error under Section 325(d).

patent instituted

Micron Technology, Inc. et al. v.Yangtze Memory Technologies Company, Ltd.

· IPR2025-00034

Micron Technology successfully petitioned to challenge key claims in a semiconductor memory patent held by Yangtze Memory Technologies, leading to institution at the PTAB. The Board focused on obviousness (103) over Nakajima, balancing technical merits with parallel litigation factors.

patent denied

Micron Technology, Inc. et al. v.Yangtze Memory Technologies Company, Ltd.

· IPR2025-00035

Micron Technology's IPR challenge against Yangtze Memory Technologies regarding 3D memory structures was denied by the PTAB. The Board found that Micron failed to demonstrate a reasonable likelihood of success on its obviousness grounds over prior art combinations.

patent instituted

Yangtze Memory Technologies Company, Ltd. v.Micron Technology, Inc. et al.

· IPR2025-00098

Yangtze Memory Technologies Company successfully convinced the PTAB to institute proceedings against Micron Technology for patent infringement. The Board found that Petitioner showed a reasonable likelihood of prevailing on at least one claim, despite arguments regarding foreign state actor status and RPI issues.

patent instituted

YANGTZE MEMORY TECHNOLOGIES COMPANY, LTD. v.Micron Technology, Inc. et al.

· IPR2025-00099

Yangtze Memory Technologies (YMTC) successfully petitioned to challenge Micron Technology's patent, leading the Board to institute the IPR. The petitioner argued that prior art disclosed or suggested key elements of flash memory technology. This decision allows YMTC to proceed with challenging claims related to semiconductor device structures.

patent instituted

Micron Technology, Inc. et al. v.Yangtze Memory Technologies Company, Ltd.

· IPR2025-00117

The PTAB granted institution of IPR for Micron against Yangtze Memory Technologies regarding 3D NAND memory claims. The Board found a reasonable likelihood of prevailing on obviousness grounds over Kim, Park, and Fang.

patent denied

Micron Technology, Inc. et al. v.Yangtze Memory Technologies Company, Ltd.

· IPR2025-00119

The PTAB denied Micron's second IPR petition against Yangtze Memory's 3D memory patent (10,879,254), citing the overlap of asserted prior art knowledge with a previously instituted review.

patent instituted

Micron Technology, Inc. et al. v.Yangtze Memory Technologies Company, Ltd.

· IPR2025-00118

Micron Technology successfully petitioned the PTAB to challenge Yangtze Memory Technologies' patent, securing institution on multiple grounds of obviousness (103) and novelty (102). The Board found sufficient evidence that combinations of prior art references would render the claims unpatentable.

patent instituted

Micron Technology, Inc. et al. v.Yangtze Memory Technologies Company, Ltd.

· IPR2025-00189

Micron Technology successfully petitioned the PTAB to challenge a key claim in Yangtze Memory Technologies' patent. The Board granted institution based on obviousness over prior art references like Kim and Nam, advancing the dispute into an active IPR phase.

patent instituted

Micron Technology, Inc. et al. v.Yangtze Memory Technologies Company, Ltd.

· IPR2025-00190

Micron Technology initiated an IPR against Yangtze Memory Technologies regarding NAND Flash memory claims, challenging the patent on grounds of anticipation and obviousness. The Board found a reasonable likelihood of unpatentability for several key claims over prior art (Dong), leading to the institution of the proceeding.

patent instituted

Micron Technology, Inc. et al. v.Yangtze Memory Technologies Company, Ltd.

· IPR2025-00191

Micron Technology successfully challenged several claims in the NAND Flash patent, establishing a reasonable likelihood of prevailing on its obviousness grounds. The Board found that modifying TAC shapes and implementing dummy channels were simple advancements supported by prior art.

patent instituted

Micron Technology, Inc. et al. v.Yangtze Memory Technologies Company, Ltd.

· PGR2025-00021

Micron Technology successfully instituted PGR against Yangtze Memory Technologies regarding a patent on 3D memory structures. The Board found that the petitioner sufficiently demonstrated obviousness over prior art references Kim and Lee for multiple claims. This moves the dispute into trial phase, raising significant stakes in semiconductor technology licensing.

patent terminated or settled

DELL INC. et al. v.AX Wireless, LLC et al.

· IPR2024-00682

Dell and AX Wireless settled eight inter partes review proceedings before any trial was instituted. The Board granted the joint motions to terminate and treated the settlement agreements as confidential.

patent terminated or settled

DELL INC. et al. v.AX Wireless, LLC et al.

· IPR2024-00680

Dell and AX Wireless settled eight inter partes review proceedings covering wireless patents. The Board granted joint motions to terminate the IPRs and treated the settlement agreements as confidential.

patent terminated or settled

Samsung Electronics Co., Ltd. et al. v.EyesMatch Ltd.

· IPR2024-00810

Samsung and EyesMatch settled the IPR over patent 8,982,110, leading the Board to terminate the proceeding for Samsung and seal the settlement agreement as confidential business information.

patent instituted

Micron Technology, Inc. et al. v.Yangtze Memory Technologies Company, Ltd.

· IPR2024-00788

The PTAB has instituted an inter partes review of Micron's challenge to Yangtze Memory’s 3D NAND patent, finding a reasonable likelihood of success on obviousness over the Toyama reference.

patent terminated or settled

Google LLC et al. v.EyesMatch Ltd.

· IPR2024-00856

Samsung filed a joint motion to terminate the IPR after reaching a settlement with EyesMatch. The Board granted the motion and sealed the settlement agreement, ending Samsung's participation in the proceeding.

patent terminated or settled

Samsung Electronics Co., Ltd. et al. v.EyesMatch Ltd.

· IPR2024-00810

Microsoft and EyesMatch settled the IPR over patent 8,982,110 B2, leading the Board to terminate the proceeding and seal the settlement agreement as confidential business information.

patent terminated or settled

Google LLC et al. v.EyesMatch Ltd.

· IPR2024-00856

Google, Samsung, and Microsoft settled their IPR challenge to EyesMatch’s ’109 patent. The Board granted a joint motion to terminate the proceeding and sealed the settlement agreement.

patent terminated or settled

HARMAN INTERNATIONAL INDUSTRIES, INC. v.ST CasesTech, LLC et al.

· IPR2024-01301

Harman and CasesTech settled their IPR dispute before trial, leading the Board to terminate the proceedings and keep the settlement agreement confidential.

patent instituted

Sony Interactive Entertainment LLC et al. v.AX Wireless, LLC

· IPR2025-00960

The PTAB granted institution of an IPR filed by Intel (challenger) against AX Wireless’s ’272 patent covering OFDM header‑repetition techniques, finding a reasonable likelihood of unpatentability based on Hansen, WWiSE, and Choi references.

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