What’s Patentable After Prometheus? USPTO Issues Interim Response

The USPTO has just issued guidelines for its patent examining corps to assist them in determining whether a process claim is patent-eligible in light of the U.S. Supreme Court's Mayo Collaborative Services v. Prometheus Laboratories, Inc., 566 U.S. __ (2012) ("Prometheus") decision. A copy of the guidance document ("Guidance Document") is attached. [2012_interim_guidance] The examiners are advised to follow the Guidance Document in examining process claims in which a law of nature, a natural phenomenon, or naturally occurring relation or correlation (collectively referred to as a "natural principle" in the Guidance Document) is a limiting element or step. The revised procedure is effective as of its date of issuance, July 3, 2012.