Jonathan I. Feil

Partner/Software Business Law

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Jonathan's practice is concentrated in computer law and technology licensing, principally representing developers and publishers of software and other IP-focused "creative enterprises." Jonathan has represented businesses of all types in the protection of intellectual property for over 25 years. His career spans DOS 3.0 to Web 3.0.

Typical services that Jonathan provides for technology clients include negotiating and drafting domestic and international licensing, tech transfer, and localization agreements, as well as business formation, mergers, acquisitions, and financing transactions. Jonathan also works with clients by helping them with  protecting and enforcing copyrights, trademarks, trade secrets, intellectual property, and export controls/licensing. He also has experience with mployment issues (hiring and exit agreements, patent and copyright assignments, contractor agreements).

Following law school, Jonathan served from 1980 - 1984 as law clerk for the Hon. Daniel M. Friedman, Chief Judge of the United State Court of Claims (reorganized in 1982 as the United States Court of Appeals for the Federal Circuit). Entering private practice in 1981, he was associated with the firm of Wilmer, Cutler & Pickering (now WilmerHale) in Washington, D.C. between 1981 - 1984, when he moved to Seattle. He has been with Simburg Ketter since 1986.

Jonathan has published various articles and lectured at seminars on computer law and IP licensing topics. He co-authored the "Software Export Procedures Kit," a simplified guide for complying with U.S. export regulations. Jonathan and his firm are active in software industry associations. He co-directed the planning for the Washington Software Association's 1989 legal issues seminar, and co-authored the chapter on international software law for WSA's resource guide, "Beyond Code: Business Tools for Software Entrepreneurs." He also co-authored the chapter on Trademark, Copyright and Trade Secret Protection in the guide, "Doing Business in Washington State: A Guide for Foreign Business and Investment," published by the International Practice Section of the Washington State Bar Association. Jonathan is also a frequent speaker at CLE rograms, on such recent topics as Crowdfunding, Doing All Things Digital, International Software Licensing, and Intellectual Property Audits.


Education & Bar Admissions


  • Columbia University School of Law, J.D. (1980)
  • Cornell University, College of Arts and Sciences, A.B. (1976)

Bar Admissions

  • Washington
  • District of Columbia (Inactive)
  • U.S. Supreme Court
  • Ninth and District of Columbia Circuits

Personal Interests

In his leisure time, Jonathan is an avid trumpet player (and principal trumpet with the Sammamish Symphony Orchestra). He also enjoys sea kayaking and collecting contemporary Northwest Native art.