In an effort to fight patent thickets, Sens. Maggie Hassan (D-NH) and Bill Cassidy (R-LA) are calling on FDA and the U.S. Patent and Trademark Office to improve coordination on drug patents and explain how USPTO uses FDA information when reviewing drug-related patent applications. “The lack of coordination between the Patent and Trademark Office (PTO) and Food and Drug Administration (FDA) has allowed the pharmaceutical industry to obtain patents of questionable validity,” the senators wrote in a letter to the...