Oil State Energy Servs., LLC v. Greene's Energy Grp., LLC, 138 S. Ct. 1365
Where Congress places conditions upon the patent grant in furtherance of the public interest in individual liberty, Congress acts at the apex of its powers under the Constitution. Inter partes review is a legislative condition on the patent grant, designed for an innovative modern world, specifically crafted to dispose of erroneously issued patents that burden the public. It is the traditional place of Congress to make these balanced political judgments, and Article III poses no barrier to Congress executing its Article I obligation to protect the public by limiting patents.
Duan, Charles, "Brief of Public Knowledge, the Electronic Frontier Foundation, Engine Advocacy, and the R Street Institute as Amici Curiae in Support of Respondents" (2017). Amicus Briefs. 38.