Knobbe/Martens: Intellectual Property Law
I treat every case as if it were my invention at stake and my money being spent.

Joseph Cianfrani


At a Glance

  • J.D. University of Virginia School of Law
  • M.S. Electrical and Computer Engineering, George Mason University
  • B.S. Electrical Engineering, University of Virginia

  • State Bar of California
  • Supreme Court of the United States
  • U.S. Court of Appeals for the Eleventh Circuit
  • U.S. Court of Appeals for the Federal Circuit
  • U.S. Court of Appeals for the Ninth Circuit

Professional Profile 

Joseph S. Cianfrani represents clients in all types of intellectual­ property disputes, including those involving patents, trademarks, trade secrets, and copyrights. His practice primarily involves patent cases at both the trial and appellate levels.

He has served as counsel in numerous cases, many of which have successfully gone to trial before a jury or bench, or have been appealed. In 2004, Joe served as a member of two trial teams in obtaining $134.5 million and $43.5 million jury verdicts for the firm’s medical device clients. In 2008, he successfully represented another of the firm’s clients in a jury trial, obtaining a judgment of infringement, validity, and substantial damages. Joe has also successfully defended the firm’s clients against patent assertion entities and obtained dismissals in many of those cases.

Joe also maintains a very active appellate practice and has represented the firm’s clients on more than 30 appeals before the United States Court of Appeals for the Federal Circuit in cases involving computer peripherals, optics, electronics, software, pharmaceuticals, DNA sequencing, and medical devices.

Joe is also a member of several professional groups and has previously served on the board of directors of the American Intellectual Property Association. He has also written and spoken extensively on patent law and appellate practice before the Court of Appeals for the Federal Circuit.

Clerk Experience

Law clerk to the Honorable Arthur J. Gajarsa of the United States Court of Appeals for the Federal Circuit, 1997-­98


  • University of Virginia School of Law (J.D. 1997), Editor of the University of Virginia Law Review, John M. Olin scholarship winner
  • George Mason University (M.S. Electrical and Computer Engineering 1997)
  • University of Virginia (B.S. Electrical Engineering 1991)
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