FacultyFaculty/Author Profile
David Lesht

David Lesht

The Law Offices of Eugene M. Cummings, P.C.
Attorney At Law
Chicago, IL, USA

Mr. Lesht obtained a Bachelor of Science degree in chemistry from the University of Illinois in 1973, a Master of Arts degree in chemistry from the University of Missouri in 1977 and a law degree from Illinois Institute of Technology's Chicago Kent College of Law in 1981.  Mr. Lesht specializes in patent, trademark, copyright and related matters.

Mr. Lesht's legal practice has involved a broad range of intellectual property legal matters.  He has analyzed, prepared, filed and prosecuted numerous patent applications involving the mechanical and chemical arts.  Further, he has supervised and aided other attorneys in the preparation and prosecution of patent applications in a diverse range of technologies.  As a trial lawyer, he has represented inventors, start-ups and companies in many patent infringement actions involving the mechanical and chemical arts.  While most of these litigations were settled amicably prior to actual trial, virtually all of them involved issues related to claim construction.

A significant portion of Mr. Lesht's practice has involved counseling and providing opinions on patents, wherein he has addressed fundamental patent law issues including claim construction, infringement and validity questions, and damages.  Since the Federal Circuit's inception in October 1982, he actively has followed the changing nuances in the intellectual property law by monitoring and reviewing the court's published opinions. Mr. Lesht has been awarded an AV® Peer Review Rating from Martindale-Hubbell, its highest rating for ethical standards and legal ability.
J.D. (with honors), IIT Chicago-Kent College of Law (1981)
M.A. (Chemistry), University of Missouri (1977)
B.S. (Chemistry), University of Illinois (1973)

State of Illinois
U.S. Supreme Court
U.S. Court of Appeals for the Federal Circuit
Trial Bar of the U.S. District Court for the Northern District of Illinois
U.S. Patent & Trademark Office
David Lesht is associated with the following items:
Live Seminar  Live Seminar Patent Fundamentals Bootcamp 2019: An Introduction to Patent Drafting, Prosecution, and Litigation, Tuesday, May 07, 2019, Chicago, IL

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