Kemper Diehl

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...

Brent Bohan is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law. Brent, 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 Brent 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.

Eric A. Lindberg is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Patent. Eric 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 Eric A. is held by other top lawyers in the same geographic and legal practice area.

Adam D. Romney is a top attorney recognized by Best Lawyers in the practice area(s) of Health Care Law. Adam D., 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 Adam D. is held by other top lawyers in the same geographic and legal practice area.

Kellie A. Tabor is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management and Litigation - Labor and Employment. Kellie A., 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 Kellie A. is held by other top lawyers in the same geographic and legal practice area.

Steven J. Schindler is a top attorney recognized by Best Lawyers in the practice area(s) of Trusts and Estates. Steven J., 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 Steven J. is held by other top lawyers in the same geographic and legal practice area.

Quentin Wildsmith is a trial attorney with an emphasis in trust, estate, guardianship, and complex commercial litigation. Quentin served as the Managing Principal for his firm from 2012-2014, and has supervised the firm’s Trust & Estate Litigation department since 2012. Quentin serves on the WSBA’s Trust and Estate Dispute Resolution subcommittee, is “AV” preeminent rated by Martindale-Hubbell, and has been consistently named a “Washington Super Lawyer”...

For nearly forty years, Randy Squires has tried lawsuits in the Pacific Northwest and elsewhere. His experience base is broad: a five year apprenticeship with a pioneer construction litigation boutique (where, among other things, he built the firm’s construction labor practice); twenty years with Davis Wright Tremaine, a large regional, now national firm, the last ten as chair of the firm’s Litigation Group; and nearly ten years as a founding member, including two years as CEO, of...

Stewart Landefeld, partner and Chair of the firm's Business practice, has 30 years of experience counseling companies and boards in the areas of corporate governance, securities compliance, mergers and acquisitions, public offerings, private equity investments and venture capital. Stewart has provided corporate governance and other general corporate counsel to dozens of leading companies, including Microsoft Corporation, Costco Wholesale Corporation, T-Mobile, PetSmart Inc., Orbitz (Audit Com...