William K. Nelson

Mr. William K. Nelson is a registered patent attorney with several years of experience practicing intellectual property (IP) law. Mr. Nelson advises clients on all aspects of intellectual property acquisition, management, enforcement, and due diligence.
  • Intellectual property disputes and litigation
  • Trademark Trial and Appeal Board (TTAB) Proceedings
  • Patent Trial and Appeal Board (PTAB) Proceedings
  • Preparing and prosecuting patent, trademark, and copyright applications
  • Foreign patent portfolio management
  • Strategic IP counseling
  • IP licensing and asset transactions
  • Patentability, invalidity, infringement, and freedom to operate analyses
  • Trademark and copyright infringement and freedom to operate analyses
In handling IP disputes, Mr. Nelson takes a practical, business-minded approach and seeks resolutions that accomplish the client’s goals quickly and efficiently. While always a zealous advocate for the client, Mr. Nelson understands that intellectual property disputes are primarily business matters that call for pragmatic solutions, rather than Pyrrhic legal victories.

With regard to patents, Mr. Nelson has been practicing before the United States Patent and Trademark Office since 2008 and has substantial experience prosecuting patents in the technical areas of biotechnology, life sciences, medical devices, agricultural and industrial technologies relating to irrigation, fertilization, harvesting, and packaging, agrichemicals, software, and electronic and semiconductor devices. Mr. Nelson also has extensive experience in procuring trademark and copyright registrations, and IP licensing and transfer agreements.

Mr. Nelson has been selected as a Northern California Super Lawyer Rising Star since 2018, a rating of outstanding lawyers who have attained a high degree of peer recognition and professional achievement. Before pursuing law, Mr. Nelson received a Master of Science degree in Biology (with distinction) from California State University, Fresno. Mr. Nelson’s graduate studies and research focused on endocrinology, in particular non-toxic, endocrine-mediated population control of invertebrate agricultural pests. His research was published in several academic articles and abstracts.
  • San Joaquin College of Law (J.D., 2011)
  • California State University, Fresno (M.S., with distinction, Biology, 2005).
  • California State University, Fresno (B.A., Psychology, Biology minor, 2002).
Admitted to Practice
  • All State Courts Within the State of California
  • United States District Court, Eastern District of California
  • United States District Court, Central District of California
  • United States Patent and Trademark Office
Professional Activities
  • State Bar of California, Intellectual Property Law Section
  • American Bar Association, Intellectual Property Law Section
  • American Intellectual Property Law Association
  • Fresno County Bar Association
  • Valley Industry Partnership for Cooperative Education, Council Member
  • Super Lawyers Rising Star 2018-2021
"Sierra IP Law exceeded our expectations
and continues to provide our firm with excellent results."
Bret Engelman - Engelmann Cellars     [Attorney Advertising Notice]

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