When will the patent implementation license take effect after filing?

According to the provisions of China's patent law, the patentee may license others to use the patent. If he permits others to use the patent, he needs to sign a patent licensing contract, and the parties concerned can apply to China National Intellectual Property Administration for filing. When will the patent implementation license take effect after filing? When will the patent license take effect after filing? According to the provisions of the Measures for Filing Patent Licensing Contracts, patent licensing contracts generally take effect when they are signed, and the filing of patent licensing contracts does not affect the effective time of the contracts. Relevant laws and regulations "Measures for Filing Patent Licensing Contracts" Article 2 China National Intellectual Property Administration is responsible for filing patent licensing contracts nationwide. Article 4 A patent licensing contract for filing shall be concluded in writing. To conclude a patent licensing contract, you can use the model contract formulated by China National Intellectual Property Administration; Where other contract texts are adopted, they shall comply with the provisions of the Contract Law of People's Republic of China (PRC). Article 5 The parties concerned shall go through the filing formalities within 3 months from the date when the patent licensing contract comes into effect.