Christina A. Robinson

Mr. Rittereiser serves as a Managing Partner of HKM’s Seattle and Portland offices. He is also an experienced trial attorney. His practice focuses on employment law, complex civil litigation, and class actions. He has recovered more than $300 million dollars on behalf of workers including some of the largest wage and hour class actions in the United States. Mr. Rittereiser’s litigation practice disrupts industries challenging antiquated business practices that deprive workers of p...

Kripa Upadhyay is a top attorney recognized by Best Lawyers in the practice area(s) of Immigration Law. Kripa, 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 Kripa is held by other top lawyers in the same geographic and legal practice area.

Derek is a senior partner in Keller Rohrback’s nationally recognized Complex Litigation Group and a member of the firm’s Executive Committee. Derek's passion for holding large corporations accountable for wrongdoing has helped recover billions of dollars for consumers, retirees, governments and institutions. He has served in leadership roles in major complex cases across the country. Currently, he is co-lead counsel in In re Facebook, Inc. Consumer Privacy User Profile Litigation ...

Casey Fitzpatrick has extensive experience with patents covering a variety of technologies. He focuses his practice on the preparation and prosecution of patent applications, inter partes review (IPR) proceedings, and patent infringement and invalidity analysis in the context of litigation and opinions of counsel. Casey’s technical expertise covers a wide range of computing technologies, including artificial intelligence and machine learning, computer vision, vehicle computer systems (i...

Sheehan Sullivan is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management and Litigation - Labor and Employment. Sheehan, who practices law in Seattle, Washington, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Sheehan is held by other top lawyers in the same geographic and legal practice area.

BACKGROUND Lorraine received a B.S. in Aeronautical and Astronautical Engineering from the University of Washington and her J.D. from the University of Washington School of Law. EXPERIENCE Lorraine specializes in domestic and foreign patent protection in the mechanical and aeronautical fields. She assists clients in both utility and design patent procurement and enforcement, strategic planning, patentability, validity and infringement opinions, and conflict resolution. Lorraine has worked wit...

Dean A. Messmer is a top attorney recognized by Best Lawyers in the practice area(s) of Closely Held Companies and Family Businesses Law, Commercial Litigation, Corporate Law and Real Estate Law. Dean 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 Dean A. is held by other top lawyers in the same geographic and legal practice area.

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

Patrick E. Basinski is a top attorney recognized by Best Lawyers in the practice area(s) of Technology Law. Patrick E., 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 Patrick E. is held by other top lawyers in the same geographic and legal practice area.

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