How long does it take to apply for an invention patent? An application for a patent for invention includes two stages, one is preliminary examination, and the other is actual examination. After submitting it to the patent office, there will be an acceptance notice with the patent number on it. After submission, it will enter the preliminary examination stage. After passing the preliminary examination about six months from the date of filing, the patent will be made public, and then it will enter the actual examination, where the practicality, novelty and creativity of the patent will be examined. If there is any problem in the middle, just look at the notice of opinion. I am not sure for several times, and the speed of reply is also uncertain, so if I can authorize the final authorization, the time is also uncertain. If all goes well, you can authorize it in about a year and a half at the earliest, which means you have a certificate. What you said is only acceptance, and whether the patent can be authorized depends on the later review.
Legal objectivity:
Article 42 of the Patent Law, the term of the invention patent right is 20 years, and the term of the utility model patent right and the design patent right is 10 years, counting from the date of application.