How long does it take for a patent transfer to be announced? Patent Transfer As for the transfer of patent rights, Article 10 of the Patent Law clearly stipulates that the fourth paragraph of this article stipulates: To transfer the right to apply for a patent or the patent right, the parties must enter into a written contract. At the same time, a change in the bibliographic items of the corresponding patent is submitted to the State Intellectual Property Office. The transfer of the patent application right or patent right will not officially take effect until the national patent management agency announces it in the Patent Gazette. The duration is approximately 1-2 months. In other words, to transfer patent rights, both parties must sign a contract and register and announce it. The transfer of patent rights will not take effect until the contract takes effect. Therefore, the transfer time of the patent right is after the registration announcement. For invention patent transfer, it usually takes 2-6 months to obtain a patent transfer qualification notice.