Paul Sieben

William (Bill) Gaede focuses his practice on intellectual property litigation in the life sciences and medical device industries. Bill serves as lead counsel for a wide range of companies and research institutes and has extensive experience in litigating life science technologies such as antibodies, proteins, small molecules and diagnostics. In addition to his jury trial experience, Bill has argued before the US Circuit Court of Appeals for the Federal Circuit. He further provides risk manage...

Ian Ballon is an intellectual property and Internet litigator who represents clients in copyright, DMCA, trademark, trade secret, right of publicity, privacy, security, software, database and Internet disputes and in the defense of data privacy, behavioral advertising and other Internet-related class action suits. Mr. Ballon, who splits his time between the firm's Silicon Valley and LA offices, is the author of the four-volume legal treatise, E-Commerce and Internet Law: Treatise With Forms 2...

James J. Masetti is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law. James J., who practices law in Palo Alto, California, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which James J. is held by other top lawyers in the same geographic and legal practice area.

Stuart Rosenberg is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Intellectual Property. Stuart, who practices law in Palo Alto, California, has been recognized since 2027. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Stuart is held by other top lawyers in the same geographic and legal practice area.

Kim T. Schoknecht is a top attorney recognized by Best Lawyers in the practice area(s) of Trusts and Estates. Kim T., who practices law in Palo Alto, California, has been recognized since 2013. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Kim T. is held by other top lawyers in the same geographic and legal practice area.

Alejandro Ruiz is a top attorney recognized by Best Lawyers in the practice area(s) of Tax Law. Alejandro, who practices law in Menlo Park, California, has been recognized since 2027. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Alejandro is held by other top lawyers in the same geographic and legal practice area.

Christopher Kao is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Intellectual Property and Litigation - Patent. Christopher, who practices law in San Francisco, California, has been recognized since 2018. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Christopher is held by other top lawyers in the same geographic and legal practice area.

When a company or its leaders are at risk, founding partner Daniel J. Bergeson uses his substantial litigation and trial experience to advocate for their rights and reputations in lawsuits involving securities, intellectual property, employment, private equity and venture capital, and commercial law. He focuses on the essential facts to persuade juries, judges, and triers of cases in state and federal courts and arbitration forums in Silicon Valley, Delaware, New York, and other dispute resol...

Lloyd Winawer is known for his work on complex business litigation and investigations. Lloyd focuses on disputes arising from mergers and acquisitions and other commercial transactions and securities law matters. Lloyd is the leader of Bergeson’s M&A Dispute Resolution Group. Lloyd has significant expertise in M&A disputes, having litigated and advised on numerous post-closing controversies related to earnouts, purchase price adjustments, contingent value rights, milestone and p...

Chris Berka is a nationally recognized trial lawyer with a practice focusing on environmental, real estate, energy, natural resources, product liability and contract matters. He has resolved more than two hundred cases for clients in a range of industries and sectors, including technology, aerospace, oil and natural gas, wind energy, real estate development, pharmaceuticals, higher education, transportation, news media, mining and consumer products. In addition to his litigation practice, Chr...