Abandonment and the it’s Effects on the Downfall of Patent right

In most contemporary legal systems abandonment has been identified as one of the causes for the loss of property rights, and also in comparison with other rights are possible. But in Islamic and Iranian law, were cited as very minor and never has been discussed as independent. Therefore, in this paper we will try to respect the comments and works of early and contemporary scholars, as well as considering the opinion of Iranian lawyers, first the effects of abandonment in corporeal property was evaluated. And then according to these effects, the result of abandonment of intellectual property, especially patent right to be studied. Finally, it was determined, as well as the other right such as easement or profit right, abandon of patent is possible. And then unlike corporeal property, abandoned patents, including the appropriation of public property, and taking possession of it, would be impossible even by the inventor or previous owner.