PTAB Invalidates Two Securus Patents, GTL Says

The Patent and Trademark Office's Patent Trial and Appeal Board (PTAB) issued written decisions granting Global Tel*Link's requests to invalidate two patents held by Securus Technologies, GTL said in a news release Monday. The rulings end existing patent infringement claims against GTL made by Securus and prevent any new suits related to the patents, GTL said. In one ruling, PTAB said Securus made incorrect statements to patent officials while seeking approval for one of the invalidated patents, the news release said. Securus didn't comment.