Global Health Solutions LLC, v. Marc Selner, No. 2023-2009 (Fed. Cir. (PTAB) Aug. 26, 2025). Opinion by Stark, joined by Stoll and Goldberg. “This case marks [the Federal Circuit’s] first review of an AIA derivation...more
In Google v. Sonos, the Federal Circuit soundly disposed of arguments that the patent-in-suit was unenforceable due to laches based on an “unreasonable delay” in patent prosecution. Does the court’s reasoning foreclose the...more
In October 2023, we reported on the district court decision in Sonos, Inc. v. Google LLC. The decision was notable for reviving the prosecution laches doctrine to render unenforceable a continuation patent filed 13 years...more
The Federal Circuit’s recent decision in Google LLC v. Sonos, Inc. (24-1097) offers a compelling look at the evolving doctrine of prosecution laches, the written description requirement, and the practical realities of patent...more
Global Health Solutions LLC v. Selner, Appeal No. 2023-2009 (Fed. Cir. Aug. 26, 2025) - In our Case of the Week, the Federal Circuit conducted its first review of a derivation proceeding under the America Invents Act that...more
A recent district court decision in Sonos v. Google has set forth a novel application of the prosecution laches doctrine to a patent with a post-1995 priority date. Sonos Inc. v. Google LLC, 20-06754 WHA, 2023 WL 6542320...more
The Supreme Court recently declined to review Personalized Media Communications, LLC v. Apple Inc., where a divided panel of the Federal Circuit upheld the district court’s finding that a PMC patent is unenforceable due to...more
We are excited to share Sheppard Mullin’s inaugural quarterly report on key Federal Circuit decisions. The Spring 2023 Quarterly Report provides summaries of most key patent law-related decisions from January 1, 2023 to March...more
Addressing for the first time whether the US Patent & Trademark Office (PTO) can assert prosecution laches as a defense in a civil action brought under 35 U.S.C. §145, the US Court of Appeals for the Federal Circuit held that...more
Gilbert P. Hyatt v. Andrew Hirshfeld, Appeal Nos. 2018-2390, -2391, -2392, 2019-1038, -1039, -1049, -1070 (Fed. Cir. June 1, 2021) - This week’s Case of the Week explores a long-running dispute between controversial...more
HYATT v. HIRSHFELD - Before Reyna, Wallach, and Hughes. Appeal from the United States District Court for the District of Columbia. Summary: The PTO met its burden to prove prosecution laches for bulk-filed patent...more
Following a four-day bench trial before him in Shire Orphan Therapies LLC et al. v. Fresenius Kabi USA, LLC, Civil Action No. 15-1102-GMS (D.Del. June 5, 2018), and having considered the entire record in the case and the...more
On March 27, 2018, District Judge Matsumoto (E.D.N.Y.) issued an 83-page decision on the parties' summary judgment briefing, which covered ten issues across three patents relating to multilayer ceramic capacitors. ...more
Arbitration - Waymo v. Uber Technologies, 870 F.3d 1342 (Fed. Cir. 2017) - Waymo sued Uber and others for trade secret misappropriation and patent infringement. Uber contends that Waymo should be compelled to...more
Courts May Not Depart from the Bankruptcy Priority Rule in Chapter 11 Structured Dismissals - For more than a century, a cornerstone of federal bankruptcy law has been the absolute priority rule, which ensures that a...more
On March 21, 2017, the U.S. Supreme Court issued its highly anticipated opinion in SCA Hygiene Products Aktiebolag v. First Quality Baby Products, LLC, 580 U.S. , No. 15-927, slip op. (Mar. 21, 2017), eliminating the...more
The U.S. Supreme Court recently issued a 7-1 ruling in SCA Hygiene1 that eliminated the common-law defense of laches in patent infringement cases. The Supreme Court reasoned that laches is a “gap-filling doctrine” that does...more
This paper is based on reports on precedential patent cases decided by the Federal Circuit distributed by Peter Heuser on a weekly basis. ...more
Update to TC Heartland LLC v. Kraft Foods Group Brands LLC, Case No. 16-341 (May 22, 2017) - In an 8-0 opinion written by Justice Thomas (Justice Gorsuch did not participate), the Supreme Court rules that a defendant...more
Patentee’s Unnecessarily Broad Prosecution Disclaimer Affirmed by Federal Circuit - In Technology Properties Limited LLC v. Huawei Technologies Co., Ltd., Appeal Nos. 2016-1306, -1307, -1309, -1310, -1311, the Federal...more
Supreme Court Restricts the Extraterritorial Reach of U.S. Patent Law for Exported Goods - On February 22, 2017, the Supreme Court in a landmark decision held that the supply of a single component of a multicomponent...more
Last week, the U.S. Supreme Court issued two opinions on intellectual property issues. On March 21, 2017, the Court decided in a 7-1 opinion that laches is no longer a valid defense to a claim of patent infringement occurring...more
Three years ago, in Petrella v. Metro-Goldwyn-Mayer, Inc., the Supreme Court held that the equitable defense of laches is not available against copyright claims for damages brought within the Copyright Act’s three-year...more
In SCA Hygiene Products Aktiebolag v. First Quality Baby Products, LLC, the Supreme Court made plain that laches is merely an equitable defense in patent cases, and will not bar a damage claim if brought within the six year...more