David A. Blumenthal

David A. Blumenthal

Senior Of Counsel

Los Angeles, (213) 892-5480


College of William & Mary (B.S., 1966)
University of Pennsylvania (M.S., 1967)
University of Pennsylvania (Ph.D., 1970)
The George Washington University Law School (J.D., 1974)

Bar Admissions

U.S. Patent & Trademark Office

Dr. David Blumenthal has more than 30 years of experience counseling clients and prosecuting patents in the area of computer-related technologies. In addition to his patent counseling and prosecution expertise, his practice also includes patent litigation support, licensing, and copyright and trade secrets counseling.

Dr. Blumenthal was the principal trial and appellate attorney in Koontz v. Jaffarian, which was the first case to establish the copyright doctrine of unit publication applied to a database and computer program stored on magnetic medium. This case was won at the trial level and upheld by the 4th Circuit.

He has published several articles on the patentability of computer programs, and computer-related inventions in the Journal of the Patent Office Society, MIT's Technology Review, and other professional journals. One of his articles was cited by the U.S. Supreme Court in an important decision relating to the patentability of computer-related inventions. He is a contributor to the coursebook Electronics and Computer Patent and Copyright Protection, published by the Patent Resources Institute.

Dr. Blumenthal has taught specialized patent law courses for PRG and was a lecturer at George Mason University in Arlington, Virginia.

While earning his B.S., Dr. Blumenthal was a member of Phi Beta Kappa honor society. He then received a full NASA fellowship to attend the University of Pennsylvania for graduate work, which led to his Ph.D. in physics.

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