By Vincent J. Allen
The U.S. Supreme Court has reversed all nine patent cases decided on appeal from the Federal Circuit since 2002. In two cases handed down in April, the Court continues its trend of reversing the Federal Circuit. In a much anticipated decision, the Court in KSR v. Teleflex unanimously rejected the Federal Circuit’s rigid approach to determining whether a patent is non-obvious in view of the prior art. Although not as far reaching as KSR, a second case, Microsoft v. AT&T, may hamper owners of software patents in their ability to prevent copying of software outside the United States.