Gregory Hitzel

BACKGROUND As Managing Partner, Hayley brings a clear vision and collaborative leadership to the firm, guiding its strategic direction while continuing to serve clients with deep expertise in intellectual property (IP) law. She focuses on efficient and effective patent prosecution, licensing, and validity and infringement studies. With a background in electrical engineering, Hayley has successfully advised clients across a broad spectrum of technologies, including electrical, software, and me...

Cory Claassen brings over 20 years of patent law experience to his practice, focusing on the preparation and prosecution of U.S. and foreign patents in the electrical, optical, and mechanical fields. Cory’s practice extends to patent infringement and validity opinions, patent portfolio management, and intellectual property strategy and counseling. He provides these services to clients across a diverse array of technologies, including semiconductor devices, electronics, display and imagi...

BACKGROUND Hai Han focuses her practice on U.S. and foreign chemical and pharmaceutical patent matters with special emphasis on small molecules. She’s trusted by her clients for her valuable insights as a strategic counselor, for IP management and patent procurement. Hai received a B.S. in Chemistry from Peking University (China) in 1992 and a Ph.D. in Organic and Physical Organic Chemistry from Brown University (1997). She also conducted post-doctoral research at the Department of Chem...

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...

Mark Berry advises employers on all aspects of the employment relationship, including employment agreements, policies and challenging workplace situations.

Nicole MacKenzie is a Seattle-based attorney who focuses on product liability and toxic tort litigation. She represents national manufacturers, suppliers, and contractors in state and federal courts, with experience handling matters across multiple jurisdictions. Nicole’s practice includes defending claims involving construction materials, automotive products, industrial equipment, and consumer goods. She also represents clients in asbestos litigation and other large-scale product liabi...

Robyn A. Shelton is a lawyer recognized by Best Lawyers in the practice area of Trademark Law. Robyn A. practices law in Seattle, Washington Best Lawyers has recognized Robyn A. Shelton since 2027. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Robyn A. Shelton is held by other lawyers.

Rod’s practice focuses on labor and employment law and involves litigation, counseling, training, and negotiating. Rod has extensive experience defending both public- and private-sector employers in discrimination, wrongful discharge, and unpaid wage cases in state and federal courts. He has also represented public and private employers in union organizing campaigns, representation proceedings, unfair labor practice proceedings, and union discrimination matters before the Public Employm...

Megan Vogel is a lawyer recognized by Best Lawyers in the practice area of Immigration Law. Megan practices law in Seattle, Washington Best Lawyers has recognized Megan Vogel since 2020. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Megan Vogel is held by other lawyers.

Judy Jennison is a lawyer recognized by Best Lawyers in the practice areas of Commercial Litigation, Copyright Law, Litigation - Intellectual Property, Trade Secrets Law and Trademark Law. Judy practices law in Seattle, Washington Best Lawyers has recognized Judy Jennison since 2019. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Judy Jennison is held by o...