Making Sense of KSR and Other Recent Patent Cases

The recent Supreme Court review of KSR International Inc. v. Teleflex Inc., eBay Inc. v. MercExchange LLC, and Microsoft Corp. v. AT&T Corp. manifests the Court’s current interest in the patent jurisprudence of the Fed-eral Circuit. Now it is evident that the Court has a level of concern sufficient to guarantee the possibility of grant of certiorari—whereas formerly a case could rarely generate sufficient interest for review. For long-range impor-tance in patent law, KSR stands alone as the single most important Supreme Court patent decision on the bread and butter standard of “obviousness” in the more than forty years since the 1966 Graham v. John Deere. KSR will remain the leading interpretation of the Graham standard for quite some time.