Three of them only need to fill in the contents that need to be changed and tick the corresponding terms; If the address hasn't changed, you don't need to look it up, and then you don't need to fill it in.
Fill in the serial number of the document: the notice in column ② of this form means that the patent application or patent has gone through the formalities of changing the description item, and the notice issued by China National Intellectual Property Administration is regarded as not submitted. If the party concerned continues to go through the alteration formalities, this column should be filled in.
If this is the first time you propose a change, you don't need to fill in this column.
If the change of contact person does not involve rights and interests, a change statement will be issued, indicating that A can no longer be a contact person for some reason. Now the relevant matters of the contact person are handed over to B, and then both parties sign for confirmation, and the patentee also needs to sign for confirmation. This can belong to "a certificate signed or sealed by both parties explaining the reasons for the change"
Relevant documents should be mailed to "China National Intellectual Property Administration Patent Office, No.6, West Tucheng Road, Jimenqiao, Haidian District, Beijing".
Record the project change fee:
Changes of inventors, applicants and patentees 200
Changes in the entrustment relationship between patent agencies and agents on page 50
This is a contact change, and payment is not specified. You can contact China National Intellectual Property Administration for further consultation: Tel: 010-62085566; 0 10-62088 166; 0 10-62088036; 0 10-6208804 1; 0 10-62088040; 0 10-62088042
That's about it. I really haven't touched the cost part and I don't know much about it.