How long will it take to know the result after the patent defense? Need specific analysis. The whole time to apply for an invention patent is 2.5-3 years, or longer. Utility model and appearance patents are generally around 1 year. I don't know what kind of patent you are defending. If it is an invention patent, it may take about 1.5 years after the defense. It is normal to re-examine the patent for utility model after the defense and not receive the information for half a year. Let's wait. In fact, the time mainly depends on the review progress of patent office examiners.
legal ground
Article 24 of the Patent Law of People's Republic of China (PRC) An invention-creation applying for a patent shall not lose its novelty in any of the following circumstances within six months before the date of filing: (1) It was exhibited for the first time at an international exhibition sponsored or recognized by the China government; (2) It was first published at a specific academic conference or technical conference; (3) Others disclose the contents of the application without the consent of the applicant.