by Dennis Crouch

Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. v. Sirius XM Radio Inc., 2023-2267 (Fed. Cir. June 9, 2025)

In this infringement case, Judge Bataillon (D.Del) sided with the accused infringer on summary judgment -- finding that Fraunhofer's infringement claim was barred by equitable estoppel. The Federal Circuit reversed on appeal - finding genuine disputes of material fact on the key estoppel issue of detrimental reliance. Although equitable estoppel remains an important defense, the case makes clear that it requires more than post-hoc rationalization of business decisions.  Instead, defendants must show they actually considered and relied upon the patentee's conduct when making key infringement decisions.

The case involves a fairly complex licensing dispute regarding multicarrier modulation technology used in satellite radio systems. Fraunhofer is a German research organization and patent holder that licensed its MCM patents to WorldSpace back in 1998. WorldSpace then sublicensed the technology to XM Satellite Radio (now SXM) for use in developing the XM DARS satellite radio system. WorldSpace filed for bankruptcy in 2008 and its trustee used the bankruptcy powers to reject reject the Fraunhofer agreement. Fraunhofer claims that rejection eliminated the sublicense to SXM.  (The legal status is disputed.) Fraunhofer waited until 2015 to notify SXM of potential infringement, and ultimately sued in 2017 over the now-expired patents.

In the past, defendants raised the equitable defense of laches in cases (like this  one) involving significant delays by patentees in asserting their rights. However, the Supreme Court's decision in SCA Hygiene v. First Quality, 580 U.S. 328 (2017), eliminated laches as a defense to damages claims for patent infringement. The Court held that Congress's enactment of a specific six-year limitations period precluded application of the judge-made laches doctrine within that statutory window. By eliminating that previously common defense, SCA Hygeine heightened the importance of the somewhat parallel defense of equitable estoppel.

But, as discussed below, equitable estoppel requires proof beyond simply unreasonable enforcement delay.

by Dennis Crouch

The Federal Circuit today issued a detailed scheduling order expedited resolution of the constitutional challenge to President Trump's global tariff program. V.O.S. Selections, Inc. v. Trump, Nos. 2025-1812, 2025-1813 (Fed. Cir. June 13, 2025). The per curiam order, issued by all participating active judges sitting en banc (excluding Judge Newman), establishes a six-week briefing schedule culminating in oral arguments on July 31, 2025—less than two months after the Court of International Trade's permanent injunction against the tariffs.  The court allocated 45 minutes per side for oral argument, double the typical time, signaling recognition of the case's exceptional constitutional significance.

The case consolidates two separate CIT cases - one filed by commercial actors led by V.O.S. and the other led by the State of Oregon.   The scheduling order explicitly authorized separate response briefs for the two plaintiff groups, rather than requiring coordination.  The order also permits amicus participation by waiving the usual consent and leave requirements -- there will likely be extensive third-party briefing.

Although the CIT issued a permanent injunction against President Trump's tariffs, earlier this week the Federal Circuit issued an emergency stay pending resolution of the appeal. This means that the White House can move forward with its tariffs.

Timeline for the appeal:

• Opening brief by US and any supporting amici: June 24.*
• Responsive briefs by V.O.S. and Oregon and any supporting Amici: July 8.
• Reply: July 18.
• Full Appendix: July 23.

by Dennis Crouch

In a significant development that places the Federal Circuit at the center of a major  political debate and constitutional question, the court recently issued a rare en banc order granting the United States' motions for stays of permanent injunctions that had halted President Trump's sweeping tariff program. The unanimous per curiam order in V.O.S. Selections, Inc. v. Trump allows the contested tariffs to remain in effect while the court considers what it characterized as "issues of exceptional importance warranting expedited en banc consideration of the merits in the first instance." [ORDER].

The Federal Circuit's decision comes against a backdrop of contradictions between the Trump administration's public posture and its private legal arguments as detailed in recent NYTimes reporting. While Commerce Secretary Howard Lutnick publicly dismissed the lower court's adverse ruling as costing them only "a week, maybe" and insisted that other countries "came right back to the table," the government's emergency filings argued that the injunction could "catastrophically harm our economy" and create a "foreign policy disaster scenario."  Similarly US Trade Representative Jamieson Greer publicly characterized the court challenge as "just kind of a bump in the road," while simultaneously filing sworn declarations arguing that halting the tariffs would deal a devastating blow to sensitive trade negotiations."

The Federal Circuit delivered an important clarification on the enablement standard for prior art Agilent Technologies, Inc. v. Synthego Corp., No. 2023-2186 (Fed. Cir. June 11, 2025), affirming PTAB decisions that invalidated all claims of two CRISPR gene-editing patents. The case featured arguments by IP luminaries Mark Lemley and Edward Reines, with the patent challenger, Reines, coming up on top this time.  The case distinguishes Amgen Inc. v. Sanofi, 598 U.S. 594 (2023): establishing clear boundaries between the enablement requirements for patent validity under 35 U.S.C. § 112 and the enablement standards for anticipatory prior art under § 102.

The unanimous Judge Prost decision also establishes that abandoned patent applications and research projects retain their full potency as prior art, rejecting arguments that abandonment should diminish their anticipatory effect.  The patentee's appellant brief had pointedly asked:

Did the Board err in finding that the claims were anticipated by and obvious over a prior art reference that never worked, was ultimately withdrawn, and which offered quadrillions of possible art combinations with no guidance to choose one that might work?

In rejecting the appeal, the court reinforced that prophetic examples in prior art can serve as anticipating references even in unpredictable fields, provided they contain sufficient enabling disclosure, and also concluded that the PTAB's decision was based upon substantial evidence.

by Dennis Crouch

The Supreme Court has rescheduled its consideration of the copyright statute of limitations petition in RADesign v. Michael Grecco (No. 24-768), moving the conference from May 29, 2025, to June 5, 2025. This delay appears strategic, as the Court has simultaneously distributed for the same June 5 conference another intellectual property limitations case: Jem Accessories, Inc. v. Harman International Industries, Inc. (No. 24-1011), which presents questions about laches in trademark law.  Both of these cases are sparked by prior statute of limitations cases - particularly the two laches cases of Petrella v. Metro-Goldwyn-Mayer, Inc., 572 U.S. 663 (2014) (copyright) and SCA Hygiene Products Aktiebolag v. First Quality Baby Products, LLC, 580 U.S. 328 (2017) (patent) alongside the 2024 SOL case of Warner Chappell Music, Inc. v. Nealy, 601 U.S. ___ (2024).

The pairing of these cases suggests the Court may be considering extending its trans-doctrinal approach to limitations and laches doctrines across intellectual property law. Both petitions raise basic questions about when rights holders must act to preserve their claims, though they approach the issue from different statutory frameworks.