What should I do if the patent technology license contract is not filed?

1. About the effective time of the contract. The patent licensing contract will take effect as soon as it is signed, and whether it is filed or not will not affect the effectiveness of the contract. 2. The duration of the patent licensing contract. According to the detailed rules for the implementation of the Patent Law, a patent licensing contract shall be filed with the patent administrative department of the State Council within 3 months from the date when the contract comes into effect. It has been more than three months now, and it is impossible to file a case. 3. The filing effect of the patent licensing contract. China's patent law and related laws and regulations do not clearly stipulate the effectiveness of patent contract filing. According to the legal practice and general jurisprudence of other countries, the effect of filing is against the patentee or exclusive licensee. In other words, if the patentee licenses the patent to others for exclusive exploitation after licensing you, you can continue to use it within the scope of the original license without being affected, otherwise it may be prohibited from exploitation. Of course, in that case, you can also claim breach of contract with the patentee. It is suggested to entrust an intellectual property lawyer in time in the future.