Amid a push to crack down on patent abuse by the pharmaceutical industry, a key U.S. lawmaker is urging six large drug companies to remove dozens of patents that were identified by regulators as improperly or inaccurately listed with a federal registry.
In a series of letters sent on Thursday, Sen. Amy Klobuchar (D-Minn.) demanded the companies explain why they have, so far, not responded to warnings issued two months ago by the Federal Trade Commission to remove more than 100 patents from the registry. The agency threatened the drug companies with litigation if they failed to comply.
The FTC had challenged a total of 10 companies over listings for patents on such medicines as asthma inhalers and epinephrine auto-injectors as part of an effort to mitigate actions that thwart competition. Among the companies to which the agency sent warnings are AbbVie, AstraZeneca, Mylan Specialty, Boehringer Ingelheim, and subsidiaries of GSK and Teva Pharmaceutical.