Does the transfer of patent right need notarization? What materials are needed for notarization of patent right transfer contract?

Lawyer Ma Yingqiu answered: Hello, in order to protect the legitimate rights and interests of the parties involved in the patent right transfer, it is best to notarize the patent right transfer. When the patent right transfer contract is notarized, the materials to be carried are: 1, the original invention patent certificate; 2. If the invention patentee is a natural person, provide the ID card, household registration book and marriage certificate of both husband and wife, and both husband and wife shall go to the notary office for handling; 3. If the patentee of the invention is a legal person, provide a copy of the business license of the legal person registered through annual inspection, the ID card of the legal representative, and the legal representative shall handle it himself. If it cannot be handled in person, a notarized power of attorney and the identity card of the trustee shall be provided; 4. If the transferee is a natural person, provide ID card and household registration book; 5. If the transferee is a legal person, provide a copy of the business license of the legal person registered in the annual inspection and the ID card of the legal representative; If the legal representative cannot handle notarization in person, a notarized power of attorney and the trustee's ID card shall be provided; 6. If the transferee is a foreign legal person, a copy of the business license and notarization of the articles of association shall be handled locally in advance, and the original notarial certificate shall be provided.