From our private database of 14,100+ case briefs...
Al-Site Corp. v. VSI International, Inc.
Court of Appeals for the Federal Circuit
174 F.3d 1308 (1999)
Magnavision, previously known as Al-Site, (plaintiff) sued VSI (defendant) for infringement of several patents directed to structures that permitted display of non-prescription glasses where a potential customer could try on the glasses. After a jury trial, Magnavision prevailed on literal infringement of one patent, but lost on the issue of literal infringement on the other patents. The jury found infringement under the doctrine of equivalents as to those other patents. In the claim construction decision, the district court concluded that, where the claims recited a “means plus function” type of language, only those specific structures disclosed in the specification were included within the scope of the claim. Magnavision appealed the district court’s claim construction, which resulted in claims that were narrower than Magnavision desired.
Rule of Law
Holding and Reasoning (Rader, 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 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.
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 221,000 law students have relied on our case briefs:
- Written by law professors and practitioners, not other law students. 14,100 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.