David J. Cho

Washington, DC

David Cho is an attorney in the firm’s Intellectual Property Department, focusing his practice on patent matters. He has drafted and prosecuted patent applications in technologies, such as computing relating to virtual and augmented reality systems, computer software/internet related technologies, semiconductors, wireless telecommunications, medical devices, power tools, battery related technologies, printing related devices, and various automotive technologies. David has also prosecuted applications in various foreign jurisdictions, worked with inventors and in-house attorneys on original work applications, counseled technology transfer matters of IP rights between universities, businesses and/or governments, and performed infringement and validity studies.

Prior to Ballard Spahr, David worked as a Patent Examiner for the U.S. Patent and Trademark Office (USPTO), where he examined patent applications in the area of medical devices and surgery technologies, including stents, balloon catheters, cannulas, respirators, aspirators, endoscopes, artificial insemination, orthopedic instruments, and disposable absorbent articles. David’s experience at the USPTO has allowed him to leverage patent procurement by identifying what needs to occur (in a productive and cost-efficient manner) in order to obtain patents for his clients. David also has a background in mechanical engineering and supported the U.S. Navy for ship design prior to his legal career.

Professional Highlights

Professional Activities

American Bar Association

Korean-American Intellectual Property Law Association

American Intellectual Property Law Association

Past Officer, Northern Virginia Patent Lawyers Club



University of Baltimore School of Law (J.D. 2001)

Drexel University (B.S. 1993)


Conversational in Korean


District of Columbia

U.S. Patent and Trademark Office

Court of Appeal for the Federal Circuit