Patrick Ryan is a litigation partner in the firm’s San Francisco office who focuses... more
Patrick Ryan is a litigation partner in the firm’s San Francisco office who focuses his practice on a cross-section of complex commercial litigation, antitrust, class action, intellectual property, tax, and constitutional matters. He represents clients in diverse industries, such as software, health care, retail, biotech, manufacturing, and real estate. Mr. Ryan has significant federal and sta... view profile
David J. Tsai is an associate in Perkins Coie's San Francisco office and a member of... more
David J. Tsai is an associate in Perkins Coie's San Francisco office and a member of the Litigation Practice Group. Mr. Tsais practice focuses on trade secret and patent litigation, with an emphasis on pharmaceuticals (Hatch-Waxman Act/ANDA), biotechnologies, the Internet, software, semiconductors, and medical devices. His legal experience also includes litigating in the areas of copyrights and... view profile
My nickname is "Zak." I grew up in Wisconsin and came to California in 1976. My wife... more
My nickname is "Zak." I grew up in Wisconsin and came to California in 1976. My wife Marlou Belyea, a clinical pyschologist and university professor, have two grown children. We enjoy foreign travel, books, movies and taking care of rescue dogs.
Antitrust and trade lawyers have experience with regulations governing what businesses can and cannot do in attempting to gain a competitive edge. Antitrust laws prohibit one company from controlling or monopolizing the market for goods or services. A famous example is the government's case against Microsoft for allegedly bundling its Internet Explorer web browser with Windows software in an attempt to dominate the Internet browser market space. Trade laws deal with practices like stealing proprietary data or mailing lists, spreading false rumors about a product, or pricing a product below cost to lure another company's customers. Claims of unfair competition (gaining customers at the expense of a competitor) can be expensive for everyone involved. Antitrust and trade attorneys can defend you against these claims, or provide support if you are the victim of unfair competition.
Antitrust / Trade Attorneys in cities near San Francisco, CA