William E. Sekyi

Of Counsel



William Sekyi is an Of Counsel patent attorney with Patterson Intellectual Property Law in Nashville. He began his practice in Washington, D.C. in 2002 and has been litigating patent disputes in district courts, appellate courts, and the International Trade Commission ever since. In addition to litigating, he counsels clients on IP matters, prosecutes patents, and more recently has been involved in a number of inter partes review proceedings before the U.S. Patent and Trademark Office. William earned a B.Sc. in mechanical engineering from Imperial College, London University, his M.S. in petroleum engineering from Louisiana State University, and his J.D. from Georgetown University Law Center.


J.D., Georgetown University Law Center

M.S., Petroleum Engineering, Louisiana State University

B.Sc., Mechanical Engineering, Imperial College, London University (United Kingdom), cum laude

Bar Admissions

District of Columbia


Registered Patent Attorney (USPTO)



  • Counsel for defendant-cross appellant in appeal of patent infringement action involving rotation molding of polymer products.
  • Favorable verdict for defendant in a software and business information trade secret misappropriation case.
  • Represented complainant in patent infringement suit relating to power supplies.
  • Represented large computer software complainant in enforcing patents related to unified communications systems. After a full hearing on the merits, the ALJ ruled in favor of complaintant. Litigation favorably settled while on appeal.
  • Represented large computer software defendant against patents generally related to software security. Case settled favorably for defendant shortly after it filed a motion challenging plaintiff’s ownership and standing to assert the patents-in-suit.
  • Represented large hardware complainant in patent infringement action.
  • Represented large computer hardware respondent in patent infringement action.
  • Represented respondents in patent infringement case resulting in a favorable settlement.
  • Represented respondents in large construction products matter resulting in a favorable case dismissal for client.
  • Represented complainant in large road milling matter violation found.
  • Defended patents relating to asphalt emulsions in IPR confirming the validity of all claims.
  • Represented patent owner appellee, confirming validity of all claims.
  • Represented patent owner in large road construction machinery case.



  • 10,612,381           Mud motor inverse power section
  • 10,590,709          Downhole oscillation apparatus
  • 10,577,752           Hot applied tack coat
  • 10,550,576          Wall, entryway, or column handrail with side to side bracing
  • 10,012,230           Graphene enhanced elastomeric stator
  • 9,597,724            Wire twisting tools and methods


  • “A Comparative Analysis of Enablement in the United Kingdom and the United States Based on Amgen Litigations” [2000/2001] 4 Bio-Science Law Review (2000)
  • Form Over Function – The Growing Trend of Design Patent Protection, Mark A. Kilgore, William E. Sekyi, Association of Corporate Counsel Tennessee Focus, (Q3 2019)

Outside the Office

Having spent many years in Ghana, Italy, and England, William is always able to provide his worldly perspective even though he is the second fastest driver at Patterson IP Law.