IP Practice Vlogs: Lessons in Calculating Patent Term

After June 8, 1995, U.S. utility patent terms changed from 17 years from issuance to 20 years from filing to harmonize with the rest of the world under the Uruguay Rounds Agreement Act. For design patents, after the Hague Agreement on May 13, 2015, design patent terms changed to from 14 years from issuance to 15 years from the date of grant/issuance. In the United States, patent term is subject to the following: patent term adjustment (PTAs), patent term extension (PTEs) and terminal disclaimers. While many other countries also have PTAs and PTEs, terminal disclaimer practice exists only in the United States because we are the only country that issues judicially-created, non-statutory double patenting rejections.Read More