Henry Welch



Education and Clerkships

J.D., Marquette University Law School, 2008, magna cum laude, Marquette Law Review, Technology Editor; Marquette Intellectual Property Law Review, Managing Editor; Intellectual Property Law Society, Member

Ph.D., Computer and Systems Engineering, Rensselaer Polytechnic Institute, 1990

M.Eng., Computer and Systems Engineering, Rensselaer Polytechnic Institute, 1986

B.S., Electrical Engineering, Minors in Mathematics and Computer Science, Virginia Polytechnic Institute and State University, 1985, summa cum laude




U.S. Patent and Trademark Office


Henry Welch uses his legal knowledge and extensive technical experience from a more than 18 year career as an engineering educator, researcher, and consultant to tailor legal advice to his technology clients that includes a thorough understanding of the technologies important to the client.

Whether preparing patent applications, responding to office actions, providing pre-litigation advice, providing due diligence advice, or representing clients in trials before the Patent Trial and Appeal Board and Federal courts, Henry uses his comprehensive knowledge of the technology involved and his skills as an educator to effectively communicate both the nuances of the legal issues as well as the technical issues to clients, judges, and patent examiners. Henry has managed patent portfolios for Fortune 500 companies as well as small start-ups, and he has coordinated the technical aspects of litigation teams addressing multiple patents in district court litigations.

Henry’s robust technical experience allows him to provide legal advice relevant to technologies ranging from semiconductor devices and processes to web enterprise including computer networking, databases, data structures, cloud computing, memory and storage systems, computer graphics, fuzzy logic, digital systems, FPGAs, embedded systems, control systems, artificial intelligence, open source software, and software development processes.

Apart from his work on behalf of his clients, Henry routinely acts as both a legal and technical mentor to other associates within the firm to help improve the legal work and technical analysis provided to clients by the other associates. Henry is also a frequent volunteer for the Legal Aid Society of San Mateo County where he provides legal advice to tenants in landlord-tenant disputes and other matters.

Professional Recognition

  • Recognized in Southern California Super Lawyers, Rising Stars Edition, Thomson Reuters, 2017.


Super Lawyers

Haynes and Boone Partners Named California Rising Stars in 2017

Haynes and Boone Partners Kimberly Chase and Henry Welch have been named Rising Stars in California in the most recent Super Lawyers directory, published by Thomson Reuters.


2017 Class of Partners

Haynes and Boone Names Thirteen New Partners for Third Consecutive Year

Haynes and Boone, LLP is proud to announce promotion to partnership of 13 lawyers, tying the record for the largest new class in the history of the firm for the third year in a row. The new class represents the firm’s Austin, Dallas, Houston, New York, Orange County, Palo Alto, Richardson and Washington, D.C. offices.

Professional and Community Activities

  • California State Bar
  • Wisconsin State Bar
  • Patent Bar
  • Registered Professional Engineer, California
  • Milwaukee Science Fiction Conventions, Inc., Founder and Chair, 1993-2008
  • Ozaukee Youth Hockey Association, Youth Hockey Coach, 2001-2008
  • Wisconsin Speleological Society, Board Member, Chair, 2007-2008

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