David Sun

David received law degrees and has considerable legal experience in both the U.S. and China. David advises clients in building global patent portfolios and developing intellectual property strategies, with particular experience in the computer and IT industries.

Prior to joining Lee & Hayes, David worked for several leading U.S. law firms in Shanghai, China and has substantial working experience in cross-border merger and acquisition, technology transfer and licensing between the U.S. and China. He also obtained substantial U.S. litigation experience as a law clerk for the Illinois Attorney General’s Office, Antitrust Bureau and a litigation law firm in Chicago. David is fluent in Mandarin and English.