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•Berklee College of Music
- B.Mus. magna cum laude, 1993
•Harvard University
- Graduate Coursework, 1994-1995
•The John Marshall Law School
- J.D., 1998; L.L.M. with honors, 1999
•Northwestern University
- Undergraduate E.E., 1999-2000
•University of Illinois
- Undergraduate E.E., 2000-2001
•The George Washington University
- M.S.E.E., 2006


•Harrity & Harrity, LLP
•Harrity Snyder, LLP
•Sughrue Mion PLLC
•Jacobson & Sorkin, LTD
•Goldstein, Fishman, Bender & Romanoff


•Illinois Bar
•Northern District of Illinois
•District of Columbia Bar
•U.S. Patent and Trademark Office


Institute for Electrical and Electronic Engineers


David’s legal practice includes patent preparation, patent prosecution, portfolio management, and related counseling. David has experience in a wide array of technologies including electrical systems, wireless and wired communication systems, mobile devices, user interfaces, encryption, modeling systems, learning machines, printers, semiconductors, music systems, search engines, signal processing, data mining, mechanical systems, and electro-mechanical systems.

Before joining SCLC, David worked at patent law firms located in Washington D.C. and Virginia where he gained experience in patent preparation and patent prosecution. David also gained experience in litigating patents and providing opinions.

Prior to entering the patent law field, David worked in litigation firms located in Chicago. David represented clients in various civil matters including personal injury and medical malpractice.

David has a very unique educational background. David began his education at the prestigious music college, Berklee College of Music. David’s studies concentrated in music production and engineering and sound design. During his attendance, David received the Robert Bradford Newman Award for a final project related to psychoacoustics. David was the first student in Berklee’s history to be honored with this award.

David served in the United States Marine Corp for three years and was honorably discharged. During his military service, David received a meritorious promotion.


Recipient of the Robert Bradford Newman Award (1993) for “Psychoacoustic Examples and Auditory Illusions Using C-Sound.”


David A. Sumy et al., “An Overview of Routing Protocols for Mobile Ad Hoc Networks,” Ultra Wideband Wireless Communication, Hüseyin Arslan, Zhi Ning Chen, and Maria-Gabriella Di Benedetto (John Wiley & Sons, Inc. 2006), 341-427.

David A. Sumy, “Selections from the Rossing Psychoacoustics CD in Csound,” The Csound Book, Perspectives in Software Synthesis, Sound Design, Signal Processing and Programming, Dr. Richard Boulanger (M.I.T Press 2000).