Why do you usually have to find an agency to apply for a patent?

There are specific requirements for the filling and writing of patent application documents, and the applicant can fill in and write them by himself or entrust an agency to handle them on his behalf. However, it is better to let the agent write it for you.

On the one hand, the application documents are more important, on the other hand, the approval process is more rigorous. For inexperienced applicants, an agency is required.

The application fee and other fees for deferred materials can be paid directly to the toll office or agency of the Patent Office, or through the post office or bank. When paying the patent fee through the post office or bank, the payer shall indicate the correct application number or patent number on the money order, and shall abbreviate the name of the payer.

The remitter should ask the bank or post office staff to enter the above payment information in the remittance postscript column. If you remit money through the post office, you should also ask the post office staff to enter the complete mailing address, including the postal code, which will play an important role in future procedures. Fees shall not be sent to the Patent Office. Of course, if you entrust an agency to apply, these processes need not be completed by yourself, and the patent application agency will help you complete them.

Baidu Encyclopedia-Patent Application