Leonard X. Rosenberg

Katrina Crafton Fluet is a top attorney recognized by Best Lawyers in the practice area(s) of Trusts and Estates. Katrina, who practices law in Menlo Park, California, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Katrina is held by other top lawyers in the same geographic and legal practice area.

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

Commercial litigator Adam Trigg represents directors, officers, and founders in complex securities litigation, shareholder disputes, business divorces, and other intracompany controversies. His Silicon Valley-based clients include executives and leaders of venture capital, life sciences, biotechnology, and high-tech companies. Securities Litigation and SEC Investigations Adam has defended numerous officers, directors, and companies in securities class actions, shareholder derivative actions, ...

Jessica Valenzuela is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation and Litigation - Securities. Jessica, 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 Jessica 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...

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.

Rudy Kim is a partner in the Intellectual Property practice of Paul Hastings and is the Chair of the Litigation Department in Palo Alto. Mr. Kim has over 20 years of experience representing clients in high-stakes IP and technology-related litigation involving patent infringement, trade secret misappropriation, and complex commercial claims in federal district and appellate courts, in private arbitration, and before the U.S. International Trade Commission (ITC) and the U.S. Patent and Trademar...

Sonal N. Mehta is a trial lawyer representing many of the world’s leading technology and life sciences companies in high-stakes disputes. Ms. Mehta is regularly called upon by clients—ranging from Silicon Valley’s largest companies to cutting-edge startups—to serve as both lead counsel in the courtroom and trusted advisor in the boardroom. She has nearly 25 years of experience across all aspects of trial and appellate practice, including federal jury and bench trials, ...

Todd Roberts is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation. Todd, who practices law in Menlo Park, California, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Todd is held by other top lawyers in the same geographic and legal practice area.

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...