Logourl black
From our private database of 14,200+ case briefs...

Microsoft Corp. v. AT&T Corp.

United States Supreme Court
550 U.S. 437 (2007)


Facts

AT&T Corporation (plaintiff) owned a patent disclosing software for digitally encoding and compressing recorded speech. AT&T brought an infringement suit against Microsoft Corporation (defendant) based on software incorporated into Microsoft’s Windows system that enabled speech processing in the manner claimed by AT&T’s patent, when installed on a computer. As part of Microsoft’s manufacturing and sale process, Microsoft sent master disks of the Windows program to foreign manufacturers, who made copies of the software. The foreign manufacturers subsequently installed the copies on computers to be sold abroad. AT&T argued that Microsoft’s initial transmission of the Windows master disks to foreign manufacturers constituted Microsoft supplying from the United States components of AT&T’s patented speech processor for combination abroad, under 35 U.S.C. § 271(f). The district court concluded that Microsoft had, in fact, infringed the patent under § 271(f). The United States Court of Appeals for the Fifth Circuit affirmed. Microsoft filed a petition for certiorari. The United States Supreme Court granted the petition.

Rule of Law

Issue

Holding and Reasoning (Ginsburg, J.)

Dissent (Stevens, J.)

What to do next…

  1. Unlock this case brief with a free (no-commitment) trial membership of Quimbee.

    You’ll be in good company: Quimbee is one of the most widely used and trusted sites for law students, serving more than 97,000 law students since 2011. Some law schools—such as Yale, Vanderbilt, Berkeley, and the University of Illinois—even subscribe directly to Quimbee for all their law students. Read our student testimonials.

  2. Learn more about Quimbee’s unique (and proven) approach to achieving great grades at law school.

    Quimbee is a company hell-bent on one thing: helping you get an “A” in every course you take in law school, so you can graduate at the top of your class and get a high-paying law job. We’re not just a study aid for law students; we’re the study aid for law students. Read more about Quimbee.

Here's why 251,000 law students have relied on our case briefs:

  • Written by law professors and practitioners, not other law students. 14,200 briefs, keyed to 189 casebooks. Top-notch customer support.
  • The right amount of information, includes the facts, issues, rule of law, holding and reasoning, and any concurrences and dissents.
  • Access in your classes, works on your mobile and tablet. Massive library of related video lessons and high quality multiple-choice questions.
  • Easy to use, uniform format for every case brief. Written in plain English, not in legalese. Our briefs summarize and simplify; they don’t just repeat the court’s language.