Where can I apply for a patent for an invention?

There are two ways to apply for patent: 1. Write and submit documents yourself. You can go to the reception hall of China National Intellectual Property Administration (Beijing), the reception hall of organs (usually in provincial capitals), or you can send it by mail (address: China National Intellectual Property Administration, No.6 Xitucheng Road, Haidian District, Beijing, zip code: 100088). After completing your application, he will send you an acceptance notice, which will indicate your patent application number, the amount of application fee to be paid and the deadline for payment. Patent application is professional. If you don't know much about the patent, you'd better not apply for it yourself, which may lead to the failure of patent application and irreparable losses. 2. Declare through an agency: Before going to an agency, you need to prepare some materials for the patent you declare. After you go to the agency, tell the agent about the products you want to patent, and he will help you analyze how many patents you want to patent and what kind of patents you want to patent in order to get full protection. After that, I will sort out my patent application materials again according to the requirements of the agent, and then after signing the contract and power of attorney with the agent, I just need to wait for the approval draft (within the time limit required by the contract). After that, the materials will be reported to the National Bureau through the agency, and the agency will help you with the follow-up procedures. You just need to wait for the notice. This kind of declaration is more worry-free, more secure and can fully protect patents. The second method is also the declaration method chosen by most applicants.