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

IPR2025-01431

The PTAB issued a Final Written Decision in IPR2017‑00549, finding that Samsung Electronics successfully invalidated ten claims of Netlist’s ’364 memory‑module patent as obvious over the Halbert and Amidi references. All challenged claims were held unpatentable under 35 U.S.C. §103(a).

Jurisdiction
US PTAB
Case Number
IPR2025-01431
Judge(s)
Stephen C. Siu, Matthew R. Clements, Sheila F. McShane
Decision Date
29 August 2025

Detailed Summary

In IPR2017‑00549, Samsung Electronics challenged claims 1‑4, 6, 7, 10, 13, 17, and 23 of Netlist’s U.S. Patent No. 8,756,364 B1, which covers improvements to multi‑rank memory modules. The petitioner argued that a combination of the Halbert (US 2002/0112119 A1) and Amidi (US 8,250,295 B2) references taught all claim limitations, making the claims obvious. Netlist contended that the claimed use of CAS latency for timing control was novel. The Board, after reviewing the evidence and expert testimony, concluded that the prior art disclosed each limitation and that a person of ordinary skill would have been motivated to combine them, rendering the claims unpatentable under 35 U.S.C. §103(a). Consequently, all ten challenged claims were held unpatentable.

Practitioner Note

This case demonstrates the evidentiary and procedural standards applied in patent matters before local courts. Understanding the court's reasoning in Samsung Electronics Co., Ltd. et al. vs Netlist, Inc. is valuable context for structuring arguments or assessing risk in similar proceedings.

Related Cases

patentIPR2025-00169

Kubota North America Corporation et al.vsVermeer Manufacturing Company

Kubota has filed an IPR petition challenging 22 claims of Vermeer’s 9,321,386 patent covering compact tool carriers. The petition relies on foreign patents KR996 and JP705, plus U.S. patents Bares and Beltrami, to argue obviousness. Kubota also argues that discretionary denial is inappropriate.

patentIPR2025-00101

Samsung Electronics Co., Ltd. et al.vsKP INNOVATIONS 2, LLC

Samsung Electronics' IPR challenge against KP Innovations was denied institution by the PTAB, despite arguments of anticipation and obviousness. The Board cited concerns over inefficient use of time and resources to decline institution, though a dissent argued for prevailing likelihood.

patentIPR2024-00993

SharkNinja, Inc. et al.vsDyson Technology Limited

SharkNinja filed an IPR petition challenging Dyson's patent (11044979) on grounds of obviousness under 35 U.S.C. § 103. The petitioner argues that the claimed hot air styling methods are predictable combinations of prior art, specifically combining Saito and Lindsey references.

patentIPR2025-00084

Ericsson Inc. et al.vsPegasus Wireless Innovation LLC

Ericsson and several industry partners have filed an IPR petition seeking cancellation of all 12 claims of U.S. Patent 11,219,000, which covers uplink control channel resource allocation in 5G NR. The petition argues the claims are obvious over prior art such as Yan, Takeda, Marinier, and a 3GPP submission, and challenges discretionary denial arguments.

patentIPR2024-01494

Western Digital Technologies, Inc. et al.vsGodo Kaisha IP Bridge 1

Western Digital seeks to have the PTAB vacate an instituted IPR on its MTJ hard‑drive patent, arguing that piecemeal review undermines the AIA and that the district court is the proper forum.

Arctic Invent — IP Strategy

Dealing with a patent challenge?

Whether it's a Section 3(d) rejection, a post-grant opposition, or a FRAND dispute, Arctic's patent litigation team has handled it. Get a strategy call.

Talk to our patent team →

Disclaimer: This page contains an automated summary based on publicly available judicial records. The content is generated for informational purposes only and does not constitute legal advice. Always verify details against the original source judgment before relying on this information for any legal purpose. If you believe any information is inaccurate, please contact us.

Strategy Consult

Facing a similar patent matter?

Arctic's litigation team uses precedent data like this to build winning arguments.

Get a Strategy Call