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Kenyon Successfully Represents Toyota in Years-Long Patent Litigation

Kenyon & Kenyon LLP successfully represented Toyota Motor Corp. in a long term patent litigation against American Vehicular Sciences (AVS). Originally brought by AVS in the Eastern District of Texas, the matter asserted 24 patents across seven separate cases – accusing essentially every major Toyota vehicular safety system. In the three years since the original filing, the Kenyon team filed 12 separate petitions for inter partes review (IPR) and won a stay in the E.D. Tex. pending resolution of the IPRs. The Patent Trial and Appeal Board granted each of the IPRs, and significant claims were cancelled or dropped. Additionally, the Kenyon team successfully petitioned the Federal Circuit for a writ of mandamus and the case was transferred from the E.D. Tex. to the Eastern District of Michigan, and filed various invalidity summary judgment papers, causing the plaintiff to drop a number of other asserted patents. In May of 2015, the E.D. Mich. granted the plaintiff’s unopposed motions to dismiss with prejudice all of the remaining cases against Toyota. (2015)

King L. Wong, Ph.D. Partner
Washington, DC


King Wong has extensive experience in preparing and/or prosecuting patent applications, including re-examinations and reissues, dealing with pharmaceuticals, chemicals, neutraceuticals, biotechnology, diagnostics, biologics such as vaccines, cosmetics, automotive parts, and fuel cells both in the United States and abroad, as well as dealing with designs and new varieties of plants in the United States. He has managed worldwide patent application portfolios for clients. He has provided freedom-to-operate, invalidity and patentability opinions related to U.S. patents in the areas of pharmaceuticals, chemicals and biotechnology. He has also advised clients, ranging from Fortune 500 companies to start-ups, in various issues dealing with patent law.

Prior to practicing law, Dr. Wong was a patent examiner at the U.S. Patent and Trademark Office (USPTO) in the organic chemistry group.  His scientific experience includes performing laboratory research in pharmacology and toxicology and providing toxicological support for NASA in the Space Shuttle and Space Station programs. Dr. Wong has co-authored over 20 articles published in biomedical journals. He was also a co-author of an article, entitled "Poisons and Poisoning," in the Encyclopedia Britannica. In addition, he was a faculty member of the Graduate School of Public Health, University of Pittsburgh, where he reached the rank of Assistant Professor.

Representative Experience

  • Teva Pharmaceuticals, one of the world’s largest pharmaceutical companies, in prosecuting its patent applications before the USPTO.
  • Sanovel, a Turkish pharmaceutical company, in prosecuting its patent applications before the USPTO.
  • Dr. Dennis Gross Skincare, a firm involved in the research and development of skincare products, in providing consultation and strategy planning in patent prosecution and litigation related to its products and technologies.

Select Publications

  • “Extension of USPTO Pilot on Information Disclosure after Issue Fee Payment,” Law360, October 1, 2013.
  • “Update on USPTO’s After Final Consideration Pilot 2.0,” Law360, September 25, 2013.



  • Johns Hopkins University, Biotechnology, M.S., 2001
  • George Washington University, Intellectual Property Law, LL.M., 1997
  • University of Houston, J.D., 1993, Giles Sutherland Rich Moot Court CompetitionPatent Law Student Award by the American Corporate Counsel Association
  • University of Kansas, Pharmacology, Ph.D., Honors in Final Doctoral Examination, 1980
  • University of Kansas, Microbiology, B.A., with honors, 1975

Bar and Court Admissions

  • District of Columbia
  • Maryland
  • Registered Patent Attorney: U.S. Patent and Trademark Office
  • California (admitted, currently inactive)
  • Texas (admitted, currently inactive)


  • Chinese (Cantonese)
  • Chinese (Mandarin)