Does anyone know the record of selling the most money for small invention patents?

To apply for a patent, you can submit it directly to the Patent Office or entrust a patent agency to handle it on your behalf: 1) Submit the patent application documents, the patent request (including the name of the invention, the applicant, the inventor and other information) and the patent application fee (that is, the official fee paid to the Patent Office) to the Patent Office. The application date and application number can be obtained from this, and the formal acceptance notice will be issued within two weeks after the application date. 2) If the Patent Office examines and issues a notice of examination opinions, it shall reply within the prescribed time limit. After the examination is finally qualified, the patent office issues a notice of authorization, indicating that it agrees to authorize. 3) After the applicant carries out authorization registration, the patent authorization announcement takes effect and the patent certificate is obtained. There are three kinds of patents in China: invention, utility model and design. Invention takes more than 2 years, utility model takes 6-8 months, and design authorization takes 5-6 months. When applying for an invention patent, the standard official fee is 3450 (including the application fee of 950 and the substantive examination fee of 2500), which can be reduced to 1070 if it meets the conditions of company fee reduction and exemption, and 560 if it meets the conditions of personal fee reduction and exemption; When authorizing registration, you must also pay 255 pounds and the annual fee for the year of authorization. To apply for a patent for utility model or design, the standard official fee is 500 yuan, which can be reduced to 150 if it meets the conditions of company fee reduction and exemption, and 75 if it meets the conditions of personal fee reduction and exemption; The annual fee and the year of authorization must be paid at the time of authorization registration. In addition, if the entrusted agent needs additional agency fees. However, the income has to be analyzed in combination with the market situation, which is uncertain.