Cheng Du

Partner/Patent Attorney

Practice Area:  Patent prosecution, reexamination, drafting, invalidation/Software copyright registration

Tel: 86-10-59208456 E-mail: cheng.du@unitalen.com   Office: Beijing

Professional Experience

Mr. Du has been working in the field of intellectual property since 2002. In the course of his career as a patent attorney, Mr. Du has dealt with a great amount of patent application and prosecution issues covering a wide range of technical fields including computer science, telecommunication, image processing, semiconductor, electronics and etc. Mr. Du has drafted quite a number of specifications and claims for famous industrial companies having interests in many fields of computer science, telecommunication and electrical engineering. Mr. Du has prepared and prosecuted numerous reexamination applications. Further, he has prepared and filed requests for invalidation and has present in oral proceedings for many times. Mr. Du has also prepared numerous opinions analyzing patentability, patent validity and patent infringement issues. 

Education Background

Bachelor of Information System Engineering from National University of Defense Technology in 1990
Master of Computer Software from National University of Defense Technology in 1994
Trained in a law firm in Washington D.C. in 2002
Master of Science on Intellectual Property Law from John Marshall Law School in 2013

Working Language

Chinese English