Daniel L. "Dan" Hannula

BACKGROUND Kevin Costanza specializes in 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 in mechanical engineering and material sciences. He received his J.D. (cum laude) from Seattle University School of Law in 1995. EXPERIENCE After receiving his bachelor’s degree, Kevin worked as an engineer with the Irvine, California office o...

Barry Alan Johnsrud is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Labor and Employment. Barry practices law in Tacoma, Washington, has been recognized since 2024. He was previously recognized by Best Lawyers for his work on the management side, before starting his own firm in 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Barry is held by other top lawyers in the same geographic and legal practice...

John Denkenberger is the managing member of COJK, a member of the firm's executive committee, and chair of the litigation practice group. John has successfully litigated patent, trademark, trade secret, and unfair business competition issues in federal and state courts. He has also successfully litigated AIA post-grant challenges, including inter partes review, before the Patent Trial and Appeal Board. In addition to his litigation practice, John also advises clients on foreign and domestic p...

Matthew Gerend practices in the firm’s nationally recognized Complex Litigation Group, representing employees, benefit plans, and consumers in litigation to enforce antitrust laws and the Employee Retirement Income Security Act (“ERISA”). Matt has represented plaintiffs in federal courts across the country to redress harms stemming from breaches of fiduciary duties, investment fraud, anticompetitive conduct, and other misconduct that harms employees, benefit plans, and consu...

David Sheldon’s strong background in computer science and technical experience in software engineering help him assist his clients with patent drafting, prosecution, and counseling for software-related inventions. David's experience includes drafting patents for various complex technologies, including machine learning/artificial intelligence, autonomous vehicle control systems, bioinformatics, and medical devices. David frequently helps his clients navigate the complicated issues surrou...

Taro acts as “outside general counsel” to countless local, national, and international businesses. He has been a transactional attorney in downtown Seattle since 2000. He joined the Lasher firm in 2005, and became a Principal of the firm in 2008. Taro grew up in Bellevue, Washington, after moving from L.A. in the second grade. Corporate and Business Law; Commercial Real Estate Acquisitions & Financing; Complex Commercial Leases; Trademark Registrations Industries served includ...

Pamela Genise is a top attorney recognized by Best Lawyers in the practice area(s) of Immigration Law. Pamela, who practices law in Seattle, Washington, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Pamela is held by other top lawyers in the same geographic and legal practice area.

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

Chris S. Brown is a top attorney recognized by Best Lawyers in the practice area(s) of Tax Law. Chris S., who practices law in Seattle, Washington, has been recognized since 2017. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Chris S. is held by other top lawyers in the same geographic and legal practice area.

Shawn Rediger is a Member in the Seattle office of Williams Kastner and Chair of the firm’s Business and Real Estate Transactions Group. Known for her practical, creative, and results-driven approach, Shawn works closely with clients to craft strategic solutions tailored to their business and legal objectives. Shawn advises businesses and individuals in bankruptcy, insolvency, and restructuring matters, with a strong focus on strategic planning. She brings a broad perspective to each ma...