1. Patent right refers to the exclusive right of the obligee to manufacture, use and sell his invention and creation within the time limit prescribed by law. The patent right for invention is twenty years.

2. Trademark right, the exclusive right to use a trademark refers to the exclusive right enjoyed by enterprises, institutions and individual businessmen to their registered trademarks according to law. The validity period is ten years from the date of approval of registration.

3. Copyright refers to the exclusive rights that authors and other copyright owners enjoy to literary, artistic and scientific works according to law, and the protection period of their rights of publication, use and remuneration is 50 years.