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Thomas W. Ritchie (Tom)


(T) +1.312.269.4003
(F) +1.312.782.8585


  • The John Marshall Law School (J.D. summa cum laude; Staff Editor, The John Marshall Review of Intellectual Property Law); Northwestern University (M.B.A.); Iowa State University (B.S. in Computer Engineering with distinction)

Bar Admissions

  • Illinois, U.S. District Court for the Northern District of Illinois, and registered to practice before the U.S. Patent and Trademark Office


  • Externship with the Honorable Robert W. Gettleman, U.S. District Court, Northern District of Illinois

Tom Ritchie represents technology companies in intellectual property matters, with a particular emphasis on high-technology patent and copyright litigation. Tom has represented clients in cases related to a variety of technologies, including computer software, semiconductors, wireless communication systems, and digital cable television distribution systems. He is also experienced in matters relating to standard-essential patents (SEP) that must be licensed on fair, reasonable, and non-discriminatory terms (FRAND), including patents related to the 3GPP / ETSI standards for UMTS and LTE mobile communications, and the ANSI / SCTE digital transmission standard for cable television. Representative clients include Qualcomm, Synopsys, and Kyocera.

During his engineering career prior to joining Jones Day, Tom held leadership and technical positions at Motorola, WMS Gaming, and Novarra. His engineering background includes experience in the areas of cellular radio systems, digital communications, real-time embedded systems, software development, and internet-related technologies. Tom is a co-inventor on three issued patents relating to his CDMA cellular systems product development work at Motorola.

Tom is a member of the Richard Linn American Inn of Court, the Intellectual Property Law Association of Chicago, and the PTAB Bar Association. He also assists with Jones Day's pro bono Laredo Project, which serves female victims of gang violence and domestic abuse who are fleeing Central America to seek asylum under the immigration laws of the United States.

Thomas Ritchie Tom