Microsoft v. i4i Limited Partnership

Published on:
September 29, 2010

SIFMA submitted an Amicus “Friend of the Court” Brief. The September 29 amicus brief is the first of two amicus briefs filed by SIFMA in Microsoft v. i4i Limited Partnership. SIFMA filed a second amicus brief in Microsoft v. i4i Limited Partnership on February 2, 2011.

Court:

U.S. Supreme Court

Amicus Issue: Whether, when a defense of patent invalidity rests on documentary evidence that was not considered by the Patent and Trademark Office (PTO), the defense must be proved by clear and convincing evidence, or whether some lesser evidentiary standard is more appropriate.

Counsel of Record:

Chadbourne & Parke LLP

30 Rockefeller Plaza

New York, NY 10112

John A. Squires

Other Amici  on SIFMA’s Brief: 

The Clearing House Association

Details

Download

More Content

  • Letters
    Nov 09, 2026

    Political Contributions by Certain Investment Advisers (SIFMA AMG)

    SIFMA AMG supports the SEC’s proposal to rescind the investment adviser pay-to-play rule, citing compliance burdens, costs and restrictions on political speech.
  • Letters
    Nov 09, 2026

    Political Contributions by Certain Investment Advisers

    SIFMA comments on the SEC’s proposal to rescind the political contributions rule for investment advisers, citing compliance burdens and existing safeguards.
  • Amicus Briefs
    Nov 06, 2026

    Blockchain Assoc. and Crypto Council for Innovation v. IL

Get the latest trends, stats, and research on financial markets and securities.