Then, if you buy an invention patent, it depends on the corresponding grade and value of the invention patent.
Then the higher the general grade, the higher the value, and if you buy a relative quantity, you will spend more money. Therefore, when purchasing these invention patents, we should make relevant purchases according to our own needs.
Then you buy a patent for invention just to get this patent certificate, some to evaluate teachers' titles, some to take an exam, and treat this patent as a personal experience. And in the relevant laws and regulations, patents can be purchased.