Microsoft v. i4i Limited Partnership

Docket No.
Op. Below
Argument
Apr 18, 2011
Tr.Aud.
Opinion
Vote
8-0
Author
Sotomayor
Term

Disclosure: Goldstein, Howe & Russell represent 3M Company et al. as amici curiae in support of respondents.

Holding: Section 282 of the Patent Act requires an invalidity defense to be proved by clear and convincing evidence. (Roberts, C.J., recused.)

Judgment: Affirmed, 8-0, in an opinion by Justice Sonia Sotomayor on June 9, 2011. Justice Breyer filed a concurring opinion, which was joined by Justices Scalia and Alito. Justice Thomas filed an opinion concurring in the judgment. (Roberts, C.J., recused).

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