U.S. judge William Bryson ruled that patents covering Allergan‘s (NYSE:AGN) Restasis medicine are invalid on the grounds of obviousness, driving the company’s shares down more than -6% in afternoon trading today.
The decision, made in a Texas federal court, is part of an ongoing case between Allergan and generic drugmakers like Mylan (NSDQ:MYL) and Teva Pharmaceuticals (NYSE:TEVA).
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