William Zimmerman Managing Partner D.C., Knobbe Martens
As a fourth-year associate, the honors Harvard Law School grad landed his firm the multimillion-dollar fight for Ranbaxy Laboratories Ltd. over the generic version of antibiotic Ceftin. He did all the technical expert witness work at trial, and won, along with lead Knobbe partner Darrell Olson. Since then, Zimmerman, who majored in chemical engineering at Notre Dame, has represented Ranbaxy in generic drug fights over Lipitor, Valtrex, and Biaxin XL. In 2006, Zimmerman invalidated one patent for Lipitor before the Federal Circuit (another Lipitor patent remains valid, however). The panel included Judge Alvin Schall, for whom Zimmerman clerked in 1997-98. Zimmerman recently moved back to Washington, D.C., to open Knobbe’s new office.
