Di Yan

BeijingDomestic Patent Department

+86-10-6604 6365

+86-10-6641 5678



Patent Attorney since 2008

Technical Field:

Mechanical Engineering、Automatic Control Engineering



Education and Training:

Master’s degree of pattern recognition and intelligent system, Beijing University of Technology, 2002-2005
Bachelor’s degree of mechanical and electronic engineering, Beijing University of Technology, 1998-2002


Professional Experience:

Joined CCPIT Patent and Trademark Law Office in 2007


Practice Area:

Drafting Patent Application Documents、Patent prosecution (including domestic patent application, PCT application and foreign patent application、Patent Reexamination、Patent Invalidation、Patent validity Litigation、Legal Opinion on Patent Infringement、Patent Search、Patent portfolio management、FTO Opinion、Third-party Observation/Public Opinion、Patent mining、Patent strategy design、Intellectual property training、Novelty search、Patent Registry in Hong Kong and Macau SAR


All China Patent Agents Association


Publication and Presentation:

Di Yan: Briefly Analyzing the Legal Risk of Invention Patent and Utility Model Patent Filed on the Same Date, Excellent Theses of the 6th Intellectual Property Forum of ACPAA, 2015