Professional Biography

Yang-Hsien (Homer) Hsu IP Attorney

  • Seattle

    D +1.206.359.6881

    F +1.206.359.7881


    1201 Third Avenue, Suite 4900

    Seattle, WA 98101-3099




Homer Hsu focuses his practice on strategic patent counseling, infringement/invalidity analysis, U.S. and foreign patent prosecution and litigation support. Homer regularly works with inventors to look at next-generation products or new areas of technology to focus on and determine what kind of protection will be needed in order to expand their businesses.

Prior to joining Perkins Coie, Homer was a practicing patent attorney in Taiwan. He served as a trusted advisor to clients in a variety of industries on patent infringement disputes, intellectual property transactions, and international investment opportunities. While acting as an in-house counsel, Homer was involved in several transnational projects, including mergers and acquisitions, intellectual property due diligence, and alternative dispute resolutions.

Homer has experience with patent analysis and prosecution in a wide range of technologies, including electric vehicles, consumer electronics, computer software, cloud computing, Internet of Things (IoT), semiconductor processing, LEDs, liquid crystal display (LCD) assemblies, cleantech/renewable energy, and medical devices. 

In his pro bono practice, Homer volunteers at a naturalization clinic in Seattle, helping low-income applicants understand the process and fill out applications. 

IPR Practice: “Good Causes” and Responding to Patent Owners’ Preliminary Responses

We wondered if some “good causes” were more effective than others when seeking leave to reply to a patent owner’s preliminary response (POPR) before institution of an inter partes review proceeding. Our analysis looks at the top 10 “good cause” arguments and their connection to institution decisions.


Professional Recognition

  • Recognized by Best Lawyers: Ones to Watch for Patent Law, 2023 – 2024

Professional Leadership

  • Asian Bar Association of Washington, Member
  • National Asian Pacific American Bar Association, Member
  • Patent Trial and Appeal Board Bar Association, Member

Community Involvement

  • National Taiwan University Alumni Association of Northwest America (NTUAANW), Board Member

Related Employment

  • Hon. Randall R. Rader, United States Court of Appeals for the Federal Circuit, Judicial Intern, 2010
  • Perkins Coie LLP, Law Clerk, 2009 - 2011
  • Lite-On Technology Corporation, Principal Legal Counsel, 2007 - 2008
  • Lee Tsai & Partners, Patent Attorney, 2003 - 2007
  • Legal Aid Foundation (Taipei), Case Examiner, 2006 - 2008





Bar and Court Admissions

  • Washington
  • U.S. Patent and Trademark Office
  • Taiwan Intellectual Property Office


  • University of Washington School of Law, J.D., 2011
  • National Taipei University, Law Research Program, 2004
  • National Taiwan University, M.S., 2001
  • National Taiwan University, B.S., 1999


  • Chinese - Mandarin
  • Taiwanese
  • Hakka


Bio In Other Languages

Simplified Chinese Bio | 中文简体