Who should Huzhou Changxing look for when applying for patent?

Patent applications are filed with China National Intellectual Property Administration or local intellectual property offices.

National Bureau of Knowledge:

Operator: 010-62083114.

Customer service center: 0 10-62085588/5599, 0 10-62356655.

Consultation on patent application acceptance: 0 10-62085500

Patent application fee consultation: 010-62085566/8166