What are the ways of patent fraud?

What are the ways of patent fraud? Our country has made great efforts to protect intellectual property rights, because, after all, in modern society, knowledge is power, which can help the country make progress in many aspects. Of course, there are many cases of patent infringement, so what are the ways of patent fraud? Four ways of patent fraud: one way of patent fraud: to defraud the evaluation fee by winning the patent. In this form of fraud, the patentee usually receives the award notice, is told that his invention has won a major award, and requires the patentee to pay a certain amount of award-winning evaluation fee, certificate fee, etc. To the designated bank account. After paying the fee, you will get the award-winning certificate and the national science and technology transformation fund. The second way of patent fraud: defrauding service fees in the name of technology transfer intermediary. Usually, after the inventor's patent is published in the patent announcement, he will receive letters from some intermediaries saying that he can help the inventor transform the patent, but he needs to pay a certain service fee. After the inventor paid the money, there was either no news or he did introduce the company, but the company would tell him that the patented technology was not needed at all. The third way of patent fraud: defrauding the evaluation fee in the name of investment. At present, many intermediaries and evaluation agencies collude with fraudsters and use the guise of investment groups to lure patentees with high returns and defraud money. In this case, the patentee must be calm and not let his guard down because of the big head of the investment institution. The fourth method of patent fraud: defrauding the participation fees in the form of exhibitions and patent matchmaking meetings. Taking advantage of the inventor's eagerness to transfer his patent to the enterprise, some lawless elements defrauded the participation fees and other expenses under the guise of invention fairs and patent matchmaking meetings.