The characteristic of the system of Patent is , country creates with legal means protective invention , through granting patent right in certain period, gains the content that inventor creates to openly its social invention. The history of more than 500 years of Patent shows that the system of Patent encourages to invent creation, promote technology to make progress , can promote the development of productivity.

First, the system of Patent can encourage the person of patent right to implement its patented technology with initiative;

Secondly, the system of Patent has created to implement patented technology other person to more favorable condition;

Again, the system of Patent is helpful to be also helpful for the advanced science and technology of our country to move towards world since foreign country introduces advanced science and technology , so promote the world that invention creates to popularize application.