I. Overview of Change Types

Changes to information in the patent register are divided into the following three major categories. Corresponding supporting documents must be prepared according to the specific type of change.

Change Type / Specific Circumstance / Official Fee
Applicant / Patentee Change	Assignment, gift, inheritance, corporate merger/spin-off/renaming, auction, ownership dispute ruling, etc.	200 yuan/item
Inventor Change	Renaming, correction of writing errors, supplementation of omitted/incorrect entries	200 yuan/item
Agent / Contact Person Change	Change of agency, change of contact person, change of representative, change of address	No official fee

II. List of Application Materials

1. Rights Transfer Type (Assignment / Gift)

Assignment contract or gift agreement signed by both parties (company seal / individual signature)
If there are multiple patentees, proof of consent to the assignment from all right holders is required
Entity qualification certificate (business license / ID card)
If a new agency is entrusted, a power of attorney and a declaration terminating the original entrustment are also required

Note: During the patent pledge period, additional proof of consent to the change from both parties to the pledge is also required.

2. Inheritance Type

Notarized inheritance proof document (proving to be the sole legal heir or all statutory heirs)
Co-heirs shall inherit jointly

3. Corporate Renaming Type

Name change certificate issued by the industry and commerce authority (original)
Copy of business license with the new name seal affixed
The copy must be notarized or sealed by the competent authority

4. Inventor Change Type

The required materials differ for the following three circumstances:

Change Circumstance	Required Materials
Renaming	Certificate issued by the household registration authority
Writing Error	Declaration signed/sealed by the person + identity certificate
Omitted/Incorrect Entry	Proof signed and sealed by all applicants + all inventors before and after the change

⚠ Omitted/incorrect entries must be requested within 1 month of receiving the acceptance notice; late requests will not be accepted!

⚠ Assignment during pledge period: proof of consent to the change from both parties to the pledge must be submitted additionally.

III. Processing Procedure

Step 1 Submit the Application

Log in to the patent affairs handling system → enter "Patent Affairs Service" → submit the "Recordal Change Request Form"

Step 2 Upload Supporting Documents

Upload the corresponding supporting documents according to the reason for change (assignment contract, name change certificate, inheritance notarization, etc.)

Step 3 Pay the Change Fee

Pay in full within 1 month from the date of filing the request; otherwise it will be deemed not to have been filed

IV. Fee Description

Money-Saving Rules

Rule 1: Multiple Items Changed for the Same Patent at Once

Applicant + inventor + address — completed in one change → only 1 request form needs to be submitted, and the fee is paid as 1 change.

Multiple items changed together cost only one fee!

Rule 2: Same Change for Multiple Patents

For example, 3 patents assigned to the same person at the same time → 3 request forms must be submitted separately, with 3 separate fees paid.

⚠ Not the same patent — fees cannot be combined

Official Fee Overview:

Change Item	Official Fee	Remarks
Applicant/Patentee Change	¥200/item	Per item, per time
Agency/Contact/Address Change	¥0	No official fee

Online handling: cponline.cnipa.gov.cn

China National Intellectual Property Administration · Patent Affairs Handling System

Patent Changes