Many entrepreneurs or individuals may need to purchase patents at the beginning of their business. Do you know that patents can be purchased on the Intellectual Property Office website? How to handle patent transfer at the Intellectual Property Office? How to handle patent transfer at the Intellectual Property Office? How to handle patent transfer at the Intellectual Property Office? 1. For the transfer of patent rights, the procedures for changing the bibliographic items should be submitted to the State Intellectual Property Office and a declaration form for changing the bibliographic items should be submitted. (In the service area and form download column on the home page of the State Intellectual Property Office website, you can download the "100016 Declaration Form for Change of Bibliographic Items") 2. Pay a handling fee of RMB 200 for change of bibliographic items within one month from the date of request. 3. Certification documents: If the patentee files a change request due to the transfer or donation of rights, he or she shall submit a transfer or donation contract. The contract is concluded by the unit and must be stamped with the unit's official seal or a contract-specific seal. When citizens conclude a contract, they must sign or seal it. If there are multiple patent holders, documentation proving that all patent holders agree to the transfer or donation should be submitted. You can find the template of "Patent Transfer Contract" directly on Baidu Patent Transfer Contract, which is available in Baidu Wenku. 4. The "Declaration Form for Change of Bibliographic Items" and supporting documents ("Patent Transfer Contract") are mailed to the acceptance office of the State Intellectual Property Office via registered postal mail or EMS; the fee for change of bibliographic items is remitted to the charge office of the State Intellectual Property Office through the post office. Note that the post office remittance form must state in the postscript column: Patent number, bibliographic item change fee of 200 yuan. 5. The addresses of the acceptance office and charging office of the State Intellectual Property Office are: No. 6, West Tucheng Road, Jimenqiao, Haidian District, Beijing (100088)