Steven J. Tonsfeldt

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

David Jakopin is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Intellectual Property. David, who practices law in Palo Alto, California, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which David 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.

As Managing Partner and Founder of Patent Law Works LLP, Greg brings a wealth of experience and knowledge to the practice of patent law. He developed a new model of patent practice for providing intellectual property services that combine a smart combination of legal, technical, and business insights reflecting deep expertise. Greg’s new model for patent practice synthesizes his beliefs that with the ubiquity of the global marketplace, the growing complexity of patent laws in many geogr...

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

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.

Dr. Joe Liebeschuetz is a partner in Alston & Bird’s Intellectual Property Patents Group in the Menlo Park office. For the last two decades, Dr. Liebeschuetz has represented biotechnology and pharmaceutical companies in patent matters. He has prosecuted several patents on platform technologies, including humanized antibodies, DNA arrays and transgenic animals, some of which have been widely licensed. He has particular experience in antibodies, having worked with several leading enti...

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.

Sean Breen is trial attorney and a partner at Howry, Breen & Herman LLP. Sean has won several Hall of Fame and Record setting verdicts and secured hundreds of millions of dollars in settlements. Sean has extensive litigation and trial experience aggressively handling and winning a broad range of cases. Mr. Breen is licensed in Texas and Colorado has over 25 years of experience representing individuals and businesses as a trial lawyer. He is recognized as one of the top trial attorneys in ...

Kathleen Strickland is a top attorney recognized by Best Lawyers in the practice area(s) of Personal Injury Litigation - Defendants and Product Liability Litigation - Defendants. Kathleen, who practices law in Menlo Park, California, has been recognized since 2005. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Kathleen is held by other top lawyers in the same geographic and legal practice area.