Development, use and transfer of environmentally sound technologies, especially from developed to developing countries, is recognized as an essential step to meet and respond to environmental challenges, protect the environment and prevent its degradation. Since these technologies are protected by intellectual property system, Countries with these technologies often reluctant to transfer these technologies to developing and less developed countries easily. Thus, intellectual property rights can make it difficult to transfer environmentally sound technologies to countries in need by granting an exclusive right to the right holder. The purpose of this research is to provide solutions to remove transfer barriers and adapting this system to the needs of developing countries and facilitate the transfer of technology to these countries. The result of this research shows that use the flexibility and capacity of intellectual property rights such as compulsory licensing, Exceptions to Patent Rights, Parallel Importation, Exceptions to the possibility of receiving a patent and pay more attention to the situation of developing countries adapts the intellectual property rights system to the needs of developing countries and facilitates the transfer of environmentally sound technologies to these countries.