David Stewart is a partner in Howrey's San Francisco office with broad experience handling competition and intellectual property matters in the United States, Europe and Asia. Within the United States, he has extensive experience counselling clients on antitrust and intellectual property issues and representing clients in federal and state courts and before government agencies. For example, he obtained pre-discovery summary dismissals in a series of six antitrust cases against a client on a variety of grounds, including Noerr-Pennington immunity, and recently represented a software company in a trial of a patent infringement case in which the jury ruled his client did not infringe the asserted patents and invalidated seven of the 10 asserted patent claims. Mr Stewart has extensive experience in representing clients, both as complainants and potential defendants, before competition authorities outside the United States. For example, Mr Stewart conceived and led RealNetworks' global efforts against Microsoft, which resulted in seminal decisions by the European Commission and the Korean Fair Trade Commission concluding that Microsoft violated European and Korean competition law.