Commissioner for Patents United States Patent and Trademark Office P.O. Box 1450 Alexandria, VA 22313-1450 www.uspto.gov MEMORANDUM DATE: April 2, 2018 TO: P,~a ~g Corps FROM: ~{Cet\v.s~hr Deputy Commissioner for Patent Examination Policy SUBJECT: Recent Subject Matter Eligibility Decisions The most recent revision of the MPEP1 was published on January 29, 2018 (the January 2018 MPEP Publication),