1.Intellectual property rights are an essential tool to promote the orderly exploitation of new technologies providing, an incentive for the creation of innovative technologies by providing protection for the investment and providing a framework for dissemination.2.Introduction of the key forms of intellectual property rights for different kinds of clean technologies include patents and trademarks.Examples applicable to clean technologies are explored.3.Review of issues in transactions for exploitation of clean technology and licenses identify matters for enterprises involved in the use, exploitation or commercialization of such technologies including due diligence issues.