Can the patent license be revoked after filing?

Legal analysis: It is ok to revoke the patent license after filing. According to relevant laws and regulations, after filing the patent licensing contract, if China National Intellectual Property Administration finds that the licensor is not the patentee or other obligee who has the right to grant the license as recorded in the patent register, it shall cancel the filing of the patent licensing contract and notify the parties concerned.

Legal basis: measures for filing patent licensing contracts

Article 13 After the filing of a patent licensing contract, if China National Intellectual Property Administration finds that the filing application has the circumstances listed in the second paragraph of Article 12 of these Measures and has not been eliminated, it shall cancel the filing of the patent licensing contract and issue a Notice of Cancellation of the Filing of the Patent Licensing Contract to the parties.

Article 14 The relevant contents of the registered patent licensing contract shall be registered in the patent register by China National Intellectual Property Administration, and the following contents shall be announced in the patent bulletin: licensor, licensee, main classification number, patent number, application date, authorization announcement date, license type and duration, and application date. If the patent licensing contract is changed, dissolved or revoked after filing, China National Intellectual Property Administration shall make corresponding registration and announcement.