What are the related matters in the cost calculation of the inventor of the patent licensing contract?

The patentee refers to the patentee registered in the patent register of China National Intellectual Property Administration. Then, what are the related matters of the inventor's fee calculation of patent licensing contract? Matters related to the calculation of inventor's expenses in patent licensing contracts: (1) The difficulty and expenses of patentee's research and development of patented technology. Generally speaking, patents with great research and development difficulties and high development costs have relatively high royalties. (2) the size of the benefits that the licensee can obtain after using the patent. If the income is large, the use fee is high. (3) Type and duration of patent license. Generally speaking, the use fee of exclusive license is relatively high, the use fee of ordinary license is relatively low, and cross-licensing sometimes does not pay the other party's use fee. (4) the way in which the licensee pays the royalties. According to the provisions of the contract law, the payment method of patent license fee can be one-time payment or one-time payment, or royalty payment or royalty payment for entry fee. In practice, the combination of entry fee and royalty is a common payment method. The patent law does not stipulate the collection of patent license fees, and both the patent licensor and the licensee reach an agreement on the fees through friendly negotiation. However, since the implementation of the Patent Law for more than 20 years, the patentee has naturally formed some established charging methods in the practice of collecting patent license fees.