Sonoma Antitrust Lawyers

Michael Hassen's litigation practice spans over 30 years and emphasizes general business and commercial litigation, including class action defense and matters involving intellectual property and unfair competition.

David Tsai is a Partner in Vinson & Elkins LLP’s San Francisco office. David's practice focuses on patent, trade secret, complex breach of contract, and product defect litigation for companies innovating biotechnology (pharmaceuticals and genetic engineering), medical devices, software (Internet and mobile apps), and hardware (semiconductors, set-top boxes, smartphones, solar wafers and light-emitting diodes/LED/OLED). His legal experience includes second chairing international arbitration cases, litigating in the areas of copyrights and trademarks, preparing and prosecuting U.S. electrical engineering patent applications, drafting patentability, freedom-to-operate and non-infringement opinions, as well as patent interference in the area of biotechnology. He also represents clients...

A resident of Oakland, Len spent much of his legal career with prestigious, top-ranked, San Francisco law firms. Mr. Watkins brings the same level of expertise, and standard of excellence, to his practice in the East Bay. Focusing on consumer bankruptcy and business law, Mr. Watkins’ depth of experience and training include: A Masters of Business Administration, concentrating on finance, from the University of California, at Davis A stock brokerage license (inactive) from the National Association of Securities Dealers A California Real Estate Broker’s license Previous Experience Business Attorney Norris & Norris (now...

Will Edelman is a former federal prosecutor, a former police officer, and a Stanford Law graduate who clerked for two federal judges. Will’s practice focuses on white-collar and regulatory matters, internal investigations, and complex commercial litigation. As a federal prosecutor in the Northern District of California, Will acted as first or second chair in ten trials. He also handled numerous contested evidentiary hearings and dispositive motion hearings. As a prosecutor, Will was the primary attorney responsible for a variety of complex matters, including multi-defendant RICO cases and fraud cases. Will also served as a police officer for a large southern California...

Patrick Delahunty is a former federal prosecutor and a seasoned trial attorney with more than 15 years of experience litigating in federal and state courts. Patrick’s practice focuses on white-collar criminal investigations and litigation resulting from them, including regulatory issues and corporate litigation. He guides his clients with clear advice about their options, legal risks, and—most importantly—the full spectrum of their rights that he will vigorously protect. At each step of the way, he looks for efficient and cost-effective solutions. He has a long track record of securing successful outcomes for his clients with this approach. Prior to...

Terrance J. Evans is a partner in the Trial Practice Group of Duane Morris in San Francisco. He concentrates his practice in representing the financial services industry, which includes international, national and community banks; loan service companies; and insurance companies.

With respect to the insurance industry, Mr. Evans concentrates his practice in complex commercial litigation and policy interpretation and analysis. He has represented commercial primary, excess and umbrella insurers in a wide range of multimillion-dollar cases, including declaratory relief, bad faith, rescission, subrogation, indemnity, additional insurance, interpleader and reformation actions.

In relation to the banking industry, Mr. Evans has represented international,...

Trial Lawyer Business Litigation Both Defense & Plaintiff Extensive Experience And With Multi-Million Dollar Verdicts; Lawyer Malpractice Cases; Real Estate Law; Wills & Trusts Contests; Class Actions.

For the past eight years at Losch & Ehrlich, Mark Meyer has handled civil litigation for businesses and individuals in state and federal courts on a wide range of issues, including contracts, real property, torts, successor liability, class actions, employment, construction, administrative and writ proceedings, anti-trust, and public contract bidding.

He has been responsible for all aspects of civil litigation, including motions, mediation, trials, and appeals. Able to successfully take matters through trial, Mark understands that efficiently resolving disputes is often in the parties’ best interest.

Mark also reviews contracts and other business transactions, with an eye towards avoiding issues that...