Jeffrey Chang focuses his practice on patent procurement, opinions, counseling, and post-issuance proceedings. He has experience in many technical areas, including medical imaging and devices, wireless communications, television, autonomous vehicles, software and data security, Internet, and financial services. Mr. Chang represents universities and businesses ranging from small startups to Fortune 500 companies.
Mr. Chang has prepared and prosecuted hundreds of utility patent applications in the U.S. and around the world. He specializes in obtaining high quality patent claims designed to read on targeted products yet withstand invalidity attacks. Mr. Chang has worked directly with technical experts to reverse engineer products for enforcement and prosecution efforts. Mr. Chang has also represented clients in patent litigation, and his litigation experience helps guide his patent procurement practice.
Mr. Chang maintains a post-issuance practice, with experience in reexamination and reissue proceedings. He also maintains a client counseling and due diligence practice. He has drafted invalidity and non-infringement opinions, and performed due diligence for patents being acquired or licensed.
Mr. Chang also has significant experience in the field of industrial designs, helping clients procure numerous design patents in the U.S. and around the world. He also co-authored an amicus brief in the U.S. Supreme Court, assisting a group of industrial designers advocate for strong design patent laws.
Mr. Chang earned a B.S. in Electrical Engineering, summa cum laude, with a minor in statistics from the University of Minnesota. He earned a J.D., with honors, from the George Washington University Law School, where he was a member of the American Intellectual Property Law Association (AIPLA) Quarterly Journal. At graduation, Mr. Chang was awarded the ABA/BNA Award for excellence in the study of intellectual property law.
While attending law school, Mr. Chang worked during the day as a full time law clerk at Banner & Witcoff and before that as a patent examiner at the U.S. Patent and Trademark Office. At the USPTO, he examined medical device applications, including endoscopes, medical imaging, surgical instruments, and robotic surgery.
Mr. Chang practices in the Washington, D.C., office of Banner & Witcoff, Ltd.
1100 13th Street, NW
Washington, DC 20005-4051
B.S. 2009, University of Minnesota
J.D. 2013, George Washington University
2014, District of Columbia
U.S. Patent and Trademark Office
U.S. District Court for the Eastern District of Virginia
Supreme Court of Virginia