The USPTO has issued new Guidance For Determining Subject Matter Eligibility to help examiners apply the principles of Myriad and Prometheus to any claim “reciting or involving laws of nature/natural principles, natural phenomena, and/or natural products.” The guidelines focus on a “signficantly different” test, and include lists of factors that weigh towards and against patent eligibility. The guidelines also include several…

Practitioners and applicants have been wondering how the USPTO would respond to the July 20, 2012, U.S. Supreme Court decision in Mayo Collaborative Services v. Prometheus Laboratories, Inc., which held that Prometheus’ personalized medicine method claims could not be patented because they were directed to a law of nature, and so excluded from patent-eligibility under 35 USC…