In 2007, the USPTO published “Examination Guidelines for Determining Obviousness Under 35 U.S.C. 103 in View of the Supreme Court Decision in KSR International Co. v. Teleflex Inc.”. This was updated in 2010 and now, as of Feb. 27, 2024, there is a new update. 89 Fed.Reg. 14,449 (Feb. 27, 2024).