According to the regulations, if you want to transfer the patent, you must sign a contract with the transferee. Because patents belong to intellectual property rights, some people worry that notarization is needed to sign contracts. In fact, contract notarization is to find witnesses, but it is not so troublesome to sign a patent transfer contract, and it does not need a third party to prove it. Notarization is not necessary, but the legal effect of the contract can be enhanced after notarization, and it can be considered if conditions permit.
I hope I can help you adopt it.