Judge Profile

Hyun J. Jung

97 IP cases indexed. Covers patent matters.

Cases Presided Over

97 cases indexed | Page 1 of 4

patent all challenged claims unpatentable · Mar 27, 2026

Google LLC v.--

· IPR2026-00271

Google and Samsung successfully challenged 27 claims of Headwater's ’733 patent, with the PTAB finding all claims unpatentable as obvious over MMS standards and known encryption technology.

patent all challenged claims unpatentable · Jan 23, 2026

Google LLC et al. v.HEADWATER RESEARCH LLC

· IPR2026-00203

The PTAB held that claims 1‑17, 19, 21‑27, 29 and 30 of Headwater Research’s ’733 patent are unpatentable. Google and Samsung successfully proved obviousness over the MMS 3GPP spec and the Ogawa encryption device.

patent all challenged claims unpatentable · Nov 25, 2025

Target Corporation v.HEADWATER RESEARCH LLC

· IPR2026-00154

The PTAB held that all 18 claims of Headwater’s ’042 patent are unpatentable, finding them obvious over a combination of prior‑art references Limont, Wright, Xu and Polson.

patent all challenged claims unpatentable · Nov 25, 2025

Target Corporation v.HEADWATER RESEARCH LLC

· IPR2026-00153

The PTAB held that claims 1‑18 of the ’042 patent are unpatentable, finding them obvious over a combination of Limont, Wright, Xu, and Polson references.

patent all challenged claims unpatentable · Nov 25, 2025

Target Corporation v.HEADWATER RESEARCH LLC

· IPR2026-00153

The PTAB issued a Final Written Decision finding all of the challenged claims of Headwater’s ’541 patent unpatentable. Google and its wireless partners successfully argued anticipation and obviousness over the Rao reference and related prior art.

patent all challenged claims unpatentable · Nov 25, 2025

Target Corporation v.HEADWATER RESEARCH LLC

· IPR2026-00154

The PTAB held that all of the challenged claims of Headwater’s ’541 patent are unpatentable, finding anticipation or obviousness over the Rao reference and, for many claims, additional references.

patent all challenged claims unpatentable · Nov 25, 2025

Target Corporation v.HEADWATER RESEARCH LLC

· IPR2026-00154

The PTAB held that Samsung’s ’733 patent claims are unpatentable, finding them obvious over a 3GPP MMS standard and an earlier encryption device. All 27 challenged claims were cancelled.

patent all challenged claims unpatentable · Nov 25, 2025

Target Corporation v.HEADWATER RESEARCH LLC

· IPR2026-00153

The PTAB held that Samsung, Google and Samsung America failed to prove patentability of Headwater's ’733 patent. All challenged claims were found obvious over TS-23.140 and Ogawa, rendering them unpatentable.

patent denied · Aug 19, 2025

Meta Platforms, Inc. v.Dialect, LLC

· IPR2025-01334

Google’s petition to invalidate Dialect’s speech‑interface patent was denied. The Board concluded the petitioner did not show a reasonable likelihood of success on any of the asserted obviousness grounds.

patent terminated or settled · Aug 1, 2025

Samsung Electronics Co., Ltd et al. v.HEADWATER PARTNERS II LLC

· IPR2025-00426

Samsung and several major carriers settled their inter partes review of Headwater’s wireless patent, leading the PTAB to terminate the proceeding and keep the settlement terms confidential.

patent terminated or settled · Jul 29, 2025

Be Smarter, LLC et al. v.Yondr, Inc.

· PGR2025-00070

Be Smarter and Yondr settled their post‑grant review dispute over patent 12,133,078. The parties filed a joint motion, and the PTAB terminated the proceeding without a final written decision.

patent denied · Jul 8, 2025

Microsoft Corporation v.Dialect, LLC

· IPR2025-01351

Google LLC’s petition to invalidate Dialect’s 7,398,209 patent on speech‑interface technology was denied. The Board concluded the petitioner did not show a reasonable likelihood of success on any of its obviousness arguments.

patent instituted · May 27, 2025

FreightCar America, Inc. v.National Steel Car Limited

· IPR2025-01047

The PTAB instituted review of IPR2025-01047 regarding the hopper car design patent (8132515). The Board found Petitioner demonstrated a reasonable likelihood of prevailing on all 44 challenged claims based on obviousness (§ 103).

patent instituted · May 27, 2025

FreightCar America, Inc. v.National Steel Car Limited

· IPR2025-01046

FreightCar America, Inc. successfully challenged National Steel Car Limited's patent claims in an IPR proceeding. The Board found a reasonable likelihood of prevailing on independent claim 2 based on obviousness over prior art references. This decision keeps the dispute alive for trial on several key claims.

patent mixed - some claims cancelled, some upheld · Feb 5, 2025

NXP Semiconductors N .V. et al. v.Harbor Island Dynamic, LLC

· IPR2025-00954

Samsung and NXP successfully invalidated a large portion of Harbor Island Dynamic's patent portfolio in the IPR proceeding. The Board found multiple claims unpatentable based on anticipation (102) and obviousness (103) using prior art references like Yu, Okashita, and Burgener. This final decision significantly weakens the patent owner’s position in semiconductor device technology.

patent terminated or settled · Feb 1, 2025

Ericsson Inc et al. v.HEADWATER PARTNERS II LLC

· IPR2025-00404

Ericsson and Nokia settled their IPR with Headwater Partners over patent 9,413,502, leading the Board to terminate the proceeding.

patent instituted · Feb 1, 2025

Ericsson Inc et al. v.HEADWATER PARTNERS II LLC

· IPR2025-00404

Ericsson Inc. successfully petitioned to invalidate key claims of Headwater Partners II LLC's patent related to wireless backhaul systems. The PTAB found a reasonable likelihood that the claims are unpatentable based on obviousness and anticipation over prior art (Ishii and Sfar).

patent terminated or settled · Dec 8, 2024

Lenovo (United States) Inc. et al. v.Headwater Research LLC

· IPR2024-01181

Lenovo and Motorola Mobility settled their IPR challenge to Headwater Research’s patent 10,749,700, leading the PTAB to terminate the proceeding and keep the settlement confidential.

patent instituted · Dec 8, 2024

Lenovo (United States) Inc. et al. v.Headwater Research LLC

· IPR2024-01181

Lenovo and Motorola successfully instituted an IPR against Headwater Research, challenging the obviousness of claims related to network capacity management over prior art references. The Board found sufficient evidence that combining Rao and Scahill would render at least claim 1 unpatentable as obvious under § 103.

patent denied · Dec 8, 2024

Lenovo (United States) Inc. et al. v.Headwater Research LLC

· IPR2024-01180

The PTAB denied institution of an IPR petition filed by Lenovo and Motorola against Headwater Research, finding that the petitioner failed to demonstrate a reasonable likelihood of prevailing on its obviousness grounds.

patent terminated or settled · Oct 18, 2024

Motorola Mobility LLC et al. v.Multifold International Incorporated Pte. Ltd.

· IPR2025-00041

Google and Motorola settled their IPR against Multifold’s patent 9,058,153, leading the PTAB to terminate the proceeding and keep the settlement terms confidential.

patent instituted · Oct 18, 2024

Motorola Mobility LLC et al. v.Multifold International Incorporated Pte. Ltd.

· IPR2025-00040

Motorola and Google successfully petitioned to institute IPR against Multifold International for patent 9134756, focusing on dual-screen UI technology. The Board found a reasonable likelihood of unpatentability under both anticipation (Yook/Purcell) and obviousness grounds.

patent instituted · Oct 18, 2024

Motorola Mobility LLC et al. v.Multifold International Incorporated Pte. Ltd.

· IPR2025-00041

The PTAB granted institution of IPR for Motorola and Google against Multifold, challenging 11 claims of patent 9058153. The Board found a reasonable likelihood that the petitioners would prevail on unpatentability grounds based on prior art.

patent terminated or settled · Oct 17, 2024

Google LLC et al. v.Multifold International Incorporated Pte. Ltd.

· IPR2025-00061

Google and Motorola settled their IPR dispute with Multifold over U.S. Patent 9,792,007 B2. The Board granted a joint motion to terminate the proceeding and ordered the settlement agreements kept confidential.

patent instituted · Oct 17, 2024

Google LLC et al. v.Multifold International Incorporated Pte. Ltd.

· IPR2025-00061

Google and Motorola Mobility successfully had their patentability challenge instituted against Multifold International's '007 patent. The Board found a reasonable likelihood of prevailing on Claim 1 based on prior art references Purcell and Nicholas, advancing the dispute to trial.

patent instituted · Oct 17, 2024

Google LLC et al. v.Multifold International Incorporated Pte. Ltd.

· IPR2025-00060

The PTAB instituted an IPR challenging U.S. Patent No. 8,842,080 B2 based on anticipation and obviousness grounds. Petitioner successfully argued that prior art references (Ogawa, Yook et al., Choi) render the patent claims unpatentable. The case is now set for trial.

patent instituted · Oct 17, 2024

Google LLC et al. v.Multifold International Incorporated Pte. Ltd.

· IPR2025-00059

Google LLC successfully petitioned to challenge Multifold International's patent 9141135 on grounds of obviousness (103). The PTAB institution decision adopted a broader claim construction for 'displays information selectively across the annunciator window,' allowing the case to proceed to trial.

patent instituted · Oct 17, 2024

Google LLC et al. v.Multifold International Incorporated Pte. Ltd.

· IPR2025-00058

Google and Motorola challenged Multifold's patent on user interface technology based on anticipation and obviousness. The PTAB institution decision found a reasonable likelihood that at least one claim was unpatentable, moving the case toward trial.

patent final · Oct 17, 2024

Google LLC et al. v.Multifold International Incorporated Pte. Ltd.

· IPR2025-00060

The PTAB found all 14 challenged claims unpatentable by a preponderance of the evidence. Petitioner successfully demonstrated anticipation under § 102 and obviousness under § 103 using prior art references Ogawa, Choi, and Yook. The Board adopted broad claim constructions for 'open application state' and 'display.'

patent Final Written Decision · Oct 17, 2024

Google LLC et al. v.Multifold International Incorporated Pte. Ltd.

· IPR2025-00059

The PTAB issued a Final Written Decision finding all 12 claims of U.S. Patent No. 9,141,135 B2 unpatentable by a preponderance of the evidence. The Board relied heavily on obviousness (35 U.S.C. § 103) based on combinations of prior art references Yook, Bauer, and Lee. This decision significantly weakens the patent's validity in the context of multi-screen user interfaces.

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