专利许可证贸易,是指专利权人(许可方),以许可证的形式,允许对方(被许可方)在一定的条件下使用其取得专利权的技术。专利许可证贸易的对象是专利技术的使用权,而不是所有权。根据专利许可合同的性质,专利许可证贸易一般可以分为以下5种:普通许可证贸易合同、独家许可证贸易合同、独占许可证 Patent license Trade refers to the patentee (licensor), in the form of a permit, allowing the other party (licensee) to use its patented technology under certain conditions. Patent license trade is the right to use patented technology, rather than ownership. According to the nature of patent licensing contracts, the general trade of patent licenses can be divided into the following five categories: ordinary license trade contracts, exclusive license trade contracts, exclusive licenses