Function/Way/Result Test Causes Headaches in Chemical Cases; Substitute Insubstantial Differences Test

In Mylan Institutional LLC v. Aurpbindo Pharma Ltd., [2017-1645] (May 19, 2017), the Federal Circuit affirmed the grant of a preliminary injunction against the infringement of U.S. Patent 9,353,050 on a triarylmethane dye used to map lymph nodes. The district court found … Continue reading Function/Way/Result Test Causes Headaches in Chemical Cases; Substitute Insubstantial Differences Test