A. filing application form;

B. a copy of the contract;

C, a copy of the patent certificate or patent application acceptance notice;

D. identification certificate of the transferor;

E. other documents.

2. No patent licensing contract has been filed.

A the patent right is terminated or declared invalid, and the patent application is rejected, withdrawn or deemed to be withdrawn;

B consulting with others without the consent of the patentee or the applicant;

C, the same patent contract repeated application for the record;

D the term of the patent contract exceeds the validity period of the patent right;

E, other do not conform to the provisions of the law.