Chapter 1 Introduction 1.1 Background 1.2 Scope and Terminology 1.3 Review of the Literature 1.4 The Objective and Structure of This Study., Chapter 2 Patents and Compulsory Licenses 2.1 Current Situation of Renewable Energy Technology Patent in the World 2.2 The Mechanism and Its History 2.3 International Legal Framework 2.4 Compulsory license in China Chapter 3 Concept of Interest 3.1 Different Conceptions of Interest 3.2 Public Interest 3.3 Interests in Compulsory Licenses Chapter 4 Interests in the Field of Renewable Energy Technology 4.1 The Extended Public Interest 4.2 Interest as Welfare and Interest as Resource 4.3 Volitional Interest and Reflective Interest Chapter 5 Proposal for System Design 5.1 The Current Legal Framework of Compulsory License 5.2 Possible Implementation Situation of Chinese Compulsory License 5.3 Proposals for Improving Compulsory License 5.4 Implementation Challenges Chapter 6 Conclusion 6.1 Summary of Each Chapter 6.2 Future Work References Acknowledgement Appendix