Guest post from Greg Stark, attorney at Schwegman Lundberg & Woessner.
In a refreshing break from Alice/Mayo abstract idea based 35 U.S.C. § 101 rejections, the Federal Circuit released a decision invalidating certain claims of U.S. Patent No. 5,799,273 as not being directed to one of the four statutory categories of inventions (see Allvoice Developments US, LLC, v. Microsoft Corp., CAFC 2014-1258, decided May 22, 2015 – a copy is available at the end of this post). The matter was on appeal, by Allvoice, from a district court decision invalidating claims 60-68 as non-statutory subject matter. The decision also affirms a non-infringement decision by the district court, while interesting that that portion of the decision is not the focus of this post.