Sex, and patents can be transferred, leased and cancelled. According to China's patent law
The relevant provisions of the patent protection has a certain period of time, including
Ming patent protection period is 20 years, in addition, the design and utility model.
The patent is 10 year. It should be noted that after the patent is granted, the protection period begins with the application.
Generally speaking, the date when an application is submitted to the Patent Office is.