From our private database of 33,800+ case briefs...
KSR International Co. v. Teleflex, Inc.
United States Supreme Court
550 U.S. 398 (2007)
Teleflex, Inc. and its subsidiary Technology Holding Company (collectively “Teleflex”) (plaintiff) held the exclusive license to the ‘565 “Engelgau” patent, entitled “Adjustable Pedal Assembly with Electronic Throttle Control.” Claim 4 of the patent described a mechanism of placing an electronic sensor on an automobile pedal which then transmitted information to the computer that controlled the vehicle’s throttle. KSR International Company (“KSR”) (defendant) added a similar type of sensor to an existing pedal and was subsequently sued by Teleflex for patent infringement. KSR argued that Teleflex’s claim 4 was invalid under the Patent Act because it was obvious. The district court granted summary judgment to KSR, and Teleflex appealed. The Court of Appeals for the Federal Circuit reversed, strictly applying the “teaching, suggestion, or motivation” test (TSM test). KSR’s petition for writ of certiorari was granted.
Rule of Law
Holding and Reasoning (Kennedy, J.)
What to do next…
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 604,000 law students since 2011. Some law schools—such as Yale, Berkeley, and Northwestern—even subscribe directly to Quimbee for all their law students.Unlock this case briefRead our student testimonials
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.Learn about our approachRead more about Quimbee
Here's why 604,000 law students have relied on our case briefs:
- Written by law professors and practitioners, not other law students. 33,800 briefs, keyed to 984 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.