Paul Sieben

Breann Robowski is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation and Controversy - Tax. Breann, who practices law in Palo Alto, California, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Breann is held by other top lawyers in the same geographic and legal practice area.

Erik Puknys’ career in intellectual property began more than 25 years ago, when he joined the U.S. Patent & Trademark Office as a patent examiner. Erik started his legal career at Finnegan’s Washington, D.C. office in 1994, and moved to California in 1997 to help open the firm’s Silicon Valley office. He has represented both plaintiffs and defendants in district courts around the United States, in the Court of Appeals for the Federal Circuit, and in the U.S. Supreme Cour...

Erik Olson's practice focuses on the litigation of securities, corporate governance, and intellectual property disputes, with particular emphasis on clients in the biotechnology, medical device, retail, and high-technology industries. In securities-related matters, Mr. Olson has repeatedly obtained dismissals of federal class action lawsuits under the Private Securities Litigation Reform Act and successfully defended those dismissals before the Fourth, Ninth and Tenth Circuits for numerous pr...

Judith Hasko is the Chair of the Transactional Department and Co-Chair of WilmerHale’s Life Sciences Practice. She provides counsel to life sciences companies and their investors on strategic, intellectual property and technology-based commercial transactions. Companies in the biotechnology, pharmaceutical, medical device and diagnostic product sectors, along with their investors, depend on Ms. Hasko for guidance and execution of licensing, corporate partnerships, joint ventures, co-pro...

Chip Lion is a partner in the Corporate Finance Group with Morrison & Foerster LLP in Palo Alto California where he is the immediate past chair of the firm’s Palo Alto Corporate Finance Group and is the firm-wide co-chair of firm’s Private Equity Fund Group. Mr. Lion regularly advises institutional investors and fund sponsors in connection with the formation of venture capital funds, leveraged buyout funds, real estate opportunity and other private equity funds. Mr. Lion repre...

Charles H. Packer is a top attorney recognized by Best Lawyers in the practice area(s) of Closely Held Companies and Family Businesses Law and Trusts and Estates. Charles H., who practices law in San Jose, California, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Charles H. is held by other top lawyers in the same geographic and legal practice area.

Kevin Feldis is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation. Kevin, 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 Kevin is held by other top lawyers in the same geographic and legal practice area.

Amr Razzak is a top attorney recognized by Best Lawyers in the practice area(s) of Mergers and Acquisitions Law. Amr, 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 Amr is held by other top lawyers in the same geographic and legal practice area.

Susan M. Spaeth is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Intellectual Property and Litigation - Patent. Susan M., who practices law in Menlo Park, California, has been recognized since 2013. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Susan M. is held by other top lawyers in the same geographic and legal practice area.

A member of the trial bar for over 50 years, Jim has unparalleled experience and skill in preparing and presenting cases for adjudication – whether by jury, judge, arbitrator, mediator or the parties themselves. He represents Silicon Valley companies with commercial, trade secret and intellectual property issues. Jim also represents individuals in a wide variety of matters, including civil rights actions, employment disputes, family law and criminal defense.