Yao-Jen Chang

Senior Patent Attorney

Yao-Jen graduated from National Chiao-Tung University with a bachelor degree in mechanical engineering. After four year's work in a national research and development institute as a research assistant, he went on to gain a master degree in mechanical engineering from University of Pittsburgh. Prior to joining Lee and Li in 1995, he was a mechanical engineer in Nan-Ya Plastic Corporation. Although specializing in mechanical engineering, Yao-Jen also handles design patent prosecution and design patent infringement cases.

    Educational Background

    University of Pittsburgh (MS, 1991)
    National Chiao-Tung University (BS, 1984)


    Patent prosecution and maintenance ,Patent right exercising, and related patent dispute matters transaction


    Nan-Ya Plastic Corporation - mechanical engineer (1992/8 ~ 1995/2)
    Philips Electronic Building Elements - mechanical engineer (Taiwan) Ltd. (1989/1 ~ 1989/6)
    Chung-Shan Institute of Science and Technology – research assistant (1984/7 ~ 1988/11)

    Contact Information

    Taipei Office
    Telephone:+886-2-2763-8000 Ext.2314