Peter A. Offenbecher

BACKGROUND Kevin Costanza's practice focuses on mechanical patent prosecution, trademark clearance, and registration, and intellectual property licensing. He received a B.S. in Engineering from the University of California at Irvine in 1990, concentrating on mechanical engineering and material sciences. Kevin received his J.D. ( cum laude ) from Seattle University School of Law in 1995. EXPERIENCE Kevin provides clients from a wide range of engineering technologies, consumer products, and ser...

Timothy J. Billick is a top attorney recognized by Best Lawyers in the practice area(s) of Patent Law and Trademark Law. Timothy J., who practices law in Seattle, Washington, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Timothy J. is held by other top lawyers in the same geographic and legal practice area.

Serena S. Carlsen is a top attorney recognized by Best Lawyers in the practice area(s) of Real Estate Law. Serena S., who practices law in Seattle, Washington, has been recognized since 2013. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Serena S. is held by other top lawyers in the same geographic and legal practice area.

Blake Marks-Dias is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation. Blake, who practices law in Seattle, Washington, has been recognized since 2022. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Blake is held by other top lawyers in the same geographic and legal practice area.

Darrell has won hundreds of cases and negotiated millions of dollars in settlements for his clients. He’s taken on and defeated some of the most powerful corporations, religious organizations, government agencies, school districts and many other entities for his clients. He’s brought the fight for justice all the way to the US Supreme Court, and won. He’s also served as co-counsel – often taking the lead at trial in the courtroom – for attorneys across the countr...

Quinn Oppenheim is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management. Quinn, who practices law in Seattle, Washington, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Quinn is held by other top lawyers in the same geographic and legal practice area.

Brian W. Grimm is a top attorney recognized by Best Lawyers in the practice area(s) of Health Care Law. Brian W., who practices law in Seattle, Washington, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Brian W. is held by other top lawyers in the same geographic and legal practice area.

Dario A. Machleidt is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Intellectual Property and Litigation - Patent. Dario A., who practices law in Seattle, Washington, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Dario A. is held by other top lawyers in the same geographic and legal practice area.

Lisa M. McGimpsey is a top attorney recognized by Best Lawyers in the practice area(s) of Employee Benefits (ERISA) Law. Lisa M., who practices law in Seattle, Washington, has been recognized since 2018. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Lisa M. is held by other top lawyers in the same geographic and legal practice area.

Andrew Bor, a partner in the firm’s Business practice, has over 30 years of experience providing counsel in the areas of corporate governance and securities regulation, corporate finance, mergers and acquisitions and strategic divestitures and spin-offs. He also handles significant strategic assignments for a number of public companies, boards of directors and special committees, including advising on relationships with activist shareholders, proxy contests, evaluating strategic alterna...