What is the limit on the number of patent examinations? What does the limit on the number of patent examinations mean? Patents are very important intellectual property rights. Patents can be divided into patents, utility patents and design patents. If a patent wants to be protected by law, it needs to be registered. Applications for registered patents need to be reviewed, so patent review What is the limit on the number of times? What does the limit on the number of patent examinations mean? Limitation on the number of patent examinations: The Patent Law stipulates the time and procedures for patent examination, but does not regulate the number of patent examinations, so there is no limit on the number of patent examinations. Article 34 of the Patent Law: After receiving an application for an invention patent, the patent administration department of the State Council shall, upon preliminary examination, deem the application to be in compliance with the requirements of this Law, and it shall publish it immediately after eighteen months from the date of application. The patent administration department of the State Council may publish the application as early as possible upon the applicant's request. Article 35 Within three years from the date of application for an invention patent, the patent administration department of the State Council may conduct a substantive examination of the application based on the request made by the applicant at any time; if the applicant fails to request a substantive examination beyond the time limit without justifiable reasons, the application shall be deemed invalid. considered withdrawn. When the patent administration department of the State Council deems it necessary, it may conduct a substantive examination of an invention patent application on its own. Article 36 When an applicant for an invention patent requests substantive examination, he shall submit reference materials related to his invention before the filing date. If an application for an invention patent has been filed in a foreign country, the patent administration department of the State Council may require the applicant to submit within a specified time limit the information on the search conducted by that country for the purpose of examining the application or the information on the examination results; if the application is not submitted beyond the time limit without justifiable reasons, the application shall be deemed to be invalid. considered withdrawn.