News & Analysis as of

Inter Partes Review (IPR) Proceeding Patents Motion for Summary Judgment

Patterson Belknap Webb & Tyler LLP

“Not That Kind of Memory Storage – Judge Oetken Grants Samsung’s Motion for Summary Judgment of Non-Infringement”

On March 31, 2025, Judge Oetken granted summary judgment for Samsung Electronics Co., Ltd. and certain of its subsidiaries (“Samsung”) in an infringement suit brought against it by Dynamics Inc. (“Dynamics”). Dynamics Inc v....more

Sterne, Kessler, Goldstein & Fox P.L.L.C.

Federal Circuit Appeals from the PTAB and ITC: Summaries of Key 2021 Decisions

[co-author: Jamie Dohopolski] Last year, the continued global COVID-19 pandemic forced American courts to largely continue the procedures set in place in 2020. The U.S. Court of Appeals for the Federal Circuit was no...more

Knobbe Martens

Controlling Your Own Destiny: Patent Owner Unilaterally Moots Appeal to Preserve Favorable PTAB Determination

Knobbe Martens on

ABS GLOBAL, INC. V. CYTONOME/ST, LLC - Before Prost, Moore, and Stoll. Appeal from the Patent Trial and Appeal Board. Summary: A patent owner may moot a petitioner’s appeal of an IPR final written decision of no...more

Akin Gump Strauss Hauer & Feld LLP

No IPR Estoppel Despite Purportedly “Gratuitous” Inclusion of Physical Device in Invalidity Defenses

A district court has ruled that the statutory estoppel arising from an inter partes review (IPR) proceeding does not apply to anticipation and obviousness defenses that rely significantly on a physical device. The court also...more

Akin Gump Strauss Hauer & Feld LLP

District Court Rejects Plaintiff’s Bid to Extend IPR Estoppel to Institution Denials

A federal judge in the Northern District of California recently rejected an argument that would have expanded inter partes review (IPR) estoppel seemingly beyond the plain reading of 35 U.S.C. § 315(e)(2). The plaintiff had...more

Fish & Richardson

EDTX & NDTX Monthly Wrap-Up – November 2019

Fish & Richardson on

This post summarizes two interesting opinions out of the Eastern and Northern Districts of Texas in November 2019. Music Choice v. Stingray Dig. Grp. Inc.: What qualifies as sufficient disclosure of an expert’s...more

Mintz - Intellectual Property Viewpoints

Collateral estoppel does not attach to PTAB invalidity determination pending appeal

Recently, in Sanofi-Aventis v. Mylan, 2:17-cv-09105-SRC-CLW, Judge Stanley Chesler of the United States District Court, District of New Jersey, denied a motion by defendant Mylan for summary judgment of invalidity of asserted...more

Foley & Lardner LLP

District Court Sheds Light on Scope of IPR Estoppel

Foley & Lardner LLP on

One area of estoppel arising from an unsuccessful AIA petition that remains poorly understood relates to prior art that is described both in a printed publication or patent and also was in use by others, such as to create...more

Jones Day

Federal Court Relies on PTAB Findings in Denying Section 101 Summary Judgment Motion

Jones Day on

Despite the prohibition on patenting “abstract ideas” and the tendency of computer software claims to fall into that category, claims directed at improving faulty software systems may still be patentable if they encompass an...more

Knobbe Martens

Federal Circuit Review - April 2019

Knobbe Martens on

Just Because Something May Result From a Prior Art Teaching Does Not Make it Inherent in that Teaching - In Personal Web Technologies, LLC v. Apple, Inc., Appeal No. 2018-1599, the Federal Circuit clarified that the mere...more

Sheppard Mullin Richter & Hampton LLP

Converting an IPR Loss into a District Court Win

It is very common to defend against a claim of patent infringement by litigating in the district court and the PTAB in parallel. The most straightforward-way for the defendant to win is to persuade the PTAB that the asserted...more

Mintz - Intellectual Property Viewpoints

Collateral Estoppel Bars Assertion of Patent Claims That Do Not “Materially Alter the Question of Invalidity” Relative to Claims...

On April 4, 2019, Chief Judge Patti Saris of the United States District Court for the District of Massachusetts held in Intellectual Ventures I, LLC v. Lenovo Group Ltd. that a final determination of invalidity in inter...more

Akin Gump Strauss Hauer & Feld LLP

Estoppel Applies to “Known or Used” Prior Art if PTAB Considered Corresponding Written References

A district court in California has granted-in-part a Plaintiff’s motion for summary judgment of no invalidity under 35 U.S.C. § 103 due to inter partes review (IPR) estoppel. During the pendency of the litigation, Defendants...more

Akin Gump Strauss Hauer & Feld LLP

Ever-Changing Inventorship Dispute Heads to Bench Trial

In a case of twisting facts, a trial judge has denied a plaintiff’s motion to correct inventorship to add an inventor to a patent because that plaintiff previously asked the PTO to remove that same inventor from the patent...more

Proskauer - New England IP Blog

Court Sends Networking Patent Inventorship Dispute to Bench Trial

In order to qualify as an inventor on a U.S. patent, a person must contribute to the conception of the invention as embodied in one or more of the claims—merely building or implementing the already-conceived technology is not...more

Akin Gump Strauss Hauer & Feld LLP

Accused Infringer Estopped from Asserting Prior Art Disclosed in Invalidity Contentions

In an order issued on April 4, 2018, Judge Lynn granted plaintiff ZitoVault’s motion for summary judgment under 35 U.S.C. 315(e)(2), holding that defendant IBM is estopped from asserting invalidity defenses based on prior art...more

Schwabe, Williamson & Wyatt PC

Fresh From the Bench: Precedential Patent Cases From the Federal Circuit

Our report includes discussions of six of the precedential cases decided in the past week and will include the other three cases in next week’s report. In Aylus v. Apple, the panel finds prosecution disclaimer in a...more

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