Patents are a national concept, and patents are all national-level.
No matter what product it is, if you have drawings, you can apply for a patent if you can clearly explain the structural connection relationship and working principle of the product based on the drawings.
There are too many specific aspects of patent application. If you want to apply for it yourself, it is recommended to read the Patent Law, the Implementing Rules of the Patent Law and the Patent Examination Guide. Usually you can handle the application after carefully studying it for a month. procedures. However, if you want to write qualified patent documents (claims, descriptions and drawings), you usually need to engage in patent agency work for at least three to five years under the guidance of an attorney with 20 to 30 years of experience in patent litigation. Therefore, it is still recommended to find a professional agency to represent your patent.
Note: Obtaining a patent certificate and obtaining true patent protection are two completely different concepts. If you spend about a month studying the Patent Law, the Implementing Rules of the Patent Law and the Patent Examination Guidelines, you may be able to obtain a patent certificate, but since it is impossible for you to accurately demarcate the scope of the technology that needs to be protected (if the scope is too large, it will be criticized by others). Invalid; if the scope is too small, it will be easy for others to change the product out of your protection scope). Therefore, you cannot actually protect it even if you get the certificate.