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No Separate Takings Remedy Against The Government

Client Alert | 1 min read | 09.27.06

The Federal Circuit, in Zoltek Corp. v. United States , (No. 04-5100, September 21, 2006), denies Zoltek's petition for rehearing en banc . In a clarifying comment to the dissent, the Federal Circuit explains that private parties do in fact have a right of action against the government for unauthorized use of a patent pursuant to 28 U.S.C. § 1498. However, any such rights are no greater than the rights against private parties, and as the Supreme Court held in Schillinger v. United States , 155 U.S. 163 (1894), Congress has not created a separate parallel takings remedy in the Court of Federal Claims. Thus, since there would be no claim for infringement against a private party under Section 1498 in this case, there is no claim for infringement against the government.


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Client Alert | 5 min read | 12.12.25

Eleventh Circuit Hears Argument on False Claims Act Qui Tam Constitutionality

On the morning of December 12, 2025, the Eleventh Circuit heard argument in United States ex rel. Zafirov v. Florida Medical Associates, LLC, et al., No. 24-13581 (11th Cir. 2025). This case concerns the constitutionality of the False Claims Act (FCA) qui tam provisions and a groundbreaking September 2024 opinion in which the United States District Court for the Middle District of Florida held that the FCA’s qui tam provisions were unconstitutional under Article II. See United States ex rel. Zafirov v. Fla. Med. Assocs., LLC, 751 F. Supp. 3d 1293 (M.D. Fla. 2024). That decision, penned by District Judge Kathryn Kimball Mizelle, was the first success story for a legal theory that has been gaining steam ever since Justices Thomas, Barrett, and Kavanaugh indicated they would be willing to consider arguments about the constitutionality of the qui tam provisions in U.S. ex rel. Polansky v. Exec. Health Res., 599 U.S. 419 (2023). In her opinion, Judge Mizelle held (1) qui tam relators are officers of the U.S. who must be appointed under the Appointments Clause; and (2) historical practice treating qui tam and similar relators as less than “officers” for constitutional purposes was not enough to save the qui tam provisions from the fundamental Article II infirmity the court identified. That ruling was appealed and, after full briefing, including by the government and a bevy of amici, the litigants stepped up to the plate this morning for oral argument....