Judge Profile

Michelle N. Ankenbrand

30 IP cases indexed. Covers patent matters.

Cases Presided Over

30 cases indexed | Page 1 of 1

patent denied · Jan 15, 2026

Google LLC et al. v.HEADWATER RESEARCH LLC

· IPR2026-00138

The Director Review denied institution of two IPRs against Headwater Research, finding that discretionary factors—particularly the timing of a parallel proceeding—outweighed the petitioner's merits. Samsung Electronics (as petitioner) and Headwater Research presented opposing arguments on the strength of the petition and the proper weighing of Fintiv factors.

patent denied · Jan 15, 2026

Google LLC et al. v.HEADWATER RESEARCH LLC

· IPR2026-00137

The PTAB Director Review denied institution of the IPRs against Headwater Research’s patents, finding the parallel proceeding’s trial date too close to the expected final decision.

patent denied · Oct 31, 2025

Google LLC et al. v.HEADWATER RESEARCH LLC

· IPR2026-00049

The PTAB Director Review denied institution of Samsung's IPR against Headwater's patent, citing the parallel proceeding's trial date as a decisive discretionary factor.

patent denied · Oct 14, 2025

Apple Inc. et al. v.HEADWATER RESEARCH LLC

· IPR2025-01571

The PTAB denied Samsung, Google and other petitioners' request for Director Review of the Final Written Decision in IPR2024-00341, leaving the original decision in place.

patent denied · Mar 24, 2025

Amazon.com, Inc. et al. v.Audio Pod IP, LLC

· IPR2025-00774

The PTAB denied Amazon’s request for Director Review of the institution decisions in several IPRs, including the one involving Audio Pod IP’s patent 8,738,740. The denial leaves the original institution outcomes intact.

patent denied · Feb 20, 2025

Samsung Electronics Co. Ltd. et al. v.OS - NEW HORIZON PERSONAL COMPUTING SOLUTIONS LTD.

· IPR2025-00613

The PTAB denied Samsung's request for Director Review of the institution decision in IPR2025-00613, leaving the IPR uninstituted.

patent · Nov 18, 2024

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

· IPR2025-00098

The PTAB granted a Director Review of the institution decision in Micron's IPR against Yangtze Memory, staying the proceedings while the Board reconsidered challenges related to foreign sovereign control and RPI disclosure.

patent denied · Nov 15, 2024

Ericsson Inc. et al. v.Pegasus Wireless Innovation LLC

· IPR2025-00084

The PTAB denied Ericsson and co‑petitioners' request for Director Review of the institution decision in IPR2025-00084, leaving the institution of the challenge to Pegasus Wireless Innovation's patent intact.

patent denied · Nov 10, 2024

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

· IPR2025-00034

The PTAB denied institution of an IPR for Micron against Yangtze Memory Technologies because the petitioner failed to show a reasonable likelihood of success on any remaining claims after several key claims were disclaimed.

patent denied · Nov 9, 2024

Google LLC v.DH International Ltd.

· IPR2024-01322

The PTAB denied Google LLC's request for Director Review of the institution decision in IPR2024-01322, leaving the institution of patent 9,022,294 B2 in place.

patent denied · Oct 24, 2024

Samsung Electronics Co., Ltd. et al. v.Netlist, Inc.

· IPR2025-00002

The PTAB denied Samsung’s request for Director Review of the institution decisions in two IPRs against Netlist’s memory‑module patents, keeping the institution rulings in place.

patent denied · Oct 17, 2024

Google LLC et al. v.Cerence Operating Company et al.

· IPR2024-01465

The PTAB denied Google’s request for Director Review of the institution decisions in two IPRs challenging Cerence’s voice‑assistant patent, leaving the institution denials in place.

patent denied · Oct 16, 2024

Google LLC et al. v.Cerence Operating Company et al.

· IPR2024-01464

The PTAB denied Google and co‑petitioners' request for Director Review of a denied institution decision concerning Cerence's in‑car voice‑assistant patent.

patent denied · Sep 30, 2024

Samsung Electronics Co., Ltd. et al. v.Mullen Industries LLC

· IPR2024-01472

The Director denied institution of an Inter Partes Review (IPR) in a dispute involving Samsung and Mullen Industries. The decision relied on the Fintiv factors, finding that procedural concerns outweighed the merits.

patent denied · Sep 24, 2024

Samsung Electronics Co., Ltd. et al. v.Harbor Island Dynamic, LLC

· IPR2024-01402

The PTAB denied Samsung’s petitions for Director Review of the institution decisions in four IPRs, including IPR2024-01402 covering patent 7,745,886, leaving the institution decisions unchanged.

patent denied · Sep 20, 2024

SAP America, Inc. et al. v.Cyandia, Inc.

· IPR2024-01432

The USPTO denied SAP America’s request for director review of the institution decisions in three IPRs, including the challenge to Cyandia’s patent 8,751,948. The order affirms the earlier denial of institution.

patent denied · Sep 9, 2024

Samsung Electronics Co., Ltd. et al. v.Headwater Research LLC

· IPR2024-01396

The Director denied institution of an Inter Partes Review, vacating the Board's decision and favoring Headwater Research LLC over Samsung Electronics Co., Ltd. based on procedural timing factors.

patent denied · Aug 10, 2024

Google LLC et al. v.Mullen Industries LLC

· IPR2025-00021

Google and Samsung’s petition to institute an IPR against Mullen Industries’ patent was denied. The Patent Owner’s response emphasized the Director’s discretionary authority, the parallel district‑court trial, and weak petition merits.

patent denied · Aug 10, 2024

Samsung Electronics Co., Ltd. et al. v.Netlist, Inc.

· IPR2025-00001

The PTAB denied Samsung’s request for Director Review of the institution decision in Netlist’s memory‑module patent case, leaving the institution in place.

patent denied · Aug 10, 2024

Google LLC et al. v.Mullen Industries LLC

· IPR2025-00021

The Director denied institution of IPR for Mullen Industries against Google LLC et al., vacating the prior decision. The denial was based on a holistic Fintiv analysis where procedural factors outweighed the merits.

patent denied · Jul 11, 2024

Jumio Corporation v.FaceTec, Inc.

· IPR2025-00108

The PTAB denied Jumio Corp.’s request for Director Review of the institution decisions in four IPRs, including the case involving FaceTec’s patent 11,693,938. The denial leaves the institution decisions unchanged.

patent denied · Jul 10, 2024

Google LLC et al. v.Mullen Industries LLC

· IPR2025-00018

The PTAB upheld its denial of institution in IPR2025-00018, finding that a parallel district‑court trial and weak petition merits justified the decision. Patent Owner’s response reinforces the Director’s discretionary authority under § 314(d).

patent denied · Jul 10, 2024

Google LLC et al. v.Mullen Industries LLC

· IPR2025-00018

The Director denied institution of an Inter Partes Review (IPR) involving Google and Mullen Industries. The decision vacated the initial grant of institution based on a holistic review of Fintiv factors.

patent denied · Jul 6, 2024

Samsung Electronics Co., Ltd. et al. v.Empire Technology Development LLC

· IPR2024-00897

Samsung’s request for Director Review of the USPTO’s denial to institute an IPR against Empire Technology’s patent was denied. The Board, led by Judge Ankenbrand, found the petition did not meet the required standards.

patent denied · Jun 9, 2024

Samsung Electronics Co., Ltd. et al. v.Headwater Research LLC

· IPR2024-01407

The Director denied an Inter Partes Review (IPR) for Headwater Research, vacating a prior institution decision after reviewing the merits and procedural factors.

patent denied · Apr 26, 2024

Microsoft Corporation v.Proxense, LLC

· IPR2024-00846

The PTAB denied Apple’s request for Director Review of the Final Written Decision in IPR2024-00233 concerning Patent 8,886,954. The Board found no merit to overturn the prior ruling.

patent denied · Apr 9, 2024

Samsung Electronics Co., Ltd et al. v.Secure Wi-Fi LLC

· IPR2024-01367

The PTAB denied Samsung’s request for Director Review of the institution decisions in four related IPRs, including IPR2024‑01367 covering Secure Wi‑Fi’s patent. The denial leaves the original institution outcomes in place.

patent denied · Mar 12, 2024

Apple Inc. v.DH International Ltd

· IPR2025-00172

The PTAB denied Apple’s request for Director Review of the institution decision in IPR2025-00172 concerning patent 9,022,294. The institution decision remains in effect, leaving the challenged patent intact.

patent denied · Feb 8, 2024

Samsung Electronics America, Inc. et al. v.Collision Communications, Inc.

· IPR2024-01248

The PTAB denied Samsung's request for Director Review of the decision that refused to institute an IPR against Collision Communications' patent. The Board found no basis to overturn the institution denial.

patent denied · Jan 23, 2024

Samsung Electronics Co., Ltd. et al. v.Headwater Research LLC

· IPR2024-00341

The PTAB denied Samsung and Google's request for Director Review of the Final Written Decision in IPR2024-00341 concerning patent 8,406,733.

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