United States Supreme Court

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Return Mail, Inc. v. Postal Service, 17–1594

Held that the U.S. Postal Service was barred here from challenging a private company's patent for a method for processing mail. Because federal agencies do not fall within the statutory definition of a person, they are ineligible to petition the Patent Trial and Appeal Board to institute patent review proceedings under the Leahy-Smith America Invents Act of 2011. Justice Sotomayor delivered the opinion of the 6-3 Court.

Appellate Information

  • Decided
  • Published 2019/06/10


  • Sotomayor


  • United States Supreme Court


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