fee for the exploitation of the patent meaning in English

专利使用费

If , pursuant to the provisions of the preceding paragraph , the patentee or the assignor of the patent right makes no repayment to the licensee or the assignee of the patent right of the fee for the exploitation of the patent or of the price for the assignment of the patent right , which is obviously contrary to the principle of equity , the patentee or the assignor of the patent right shall repay the whole or part of the fee for the exploitation of the patent or of the price for the assignment of the patent right to the licensee or the assignee of the patent right
如果依照前款规定，专利权人或者专利权转让人不向被许可实施专利人或者专利权受让人返还专利使用费或者专利权转让费，明显违反公平原则，专利权人或者专利权转让人应当向被许可实施专利人或者专利权受让人返还全部或者部分专利使用费或者专利权转让费。