In China, after a patent application for invention is filed, the applicant has only two chances to voluntarily amend its patent application:one is at the time of requesting substantive examination, and the other is within three mo ...

Since Chinese utility model patent or design patent does not have substantive examination before being granted as patent, if wishing to enforce a utility model or design patent in China, e.g., filing an infringement litigation cas ...

Multiple dependent claims are allowable in China. However, any multiple dependent claims which refer to two or more claims shall refer to the preceding one in the alternative only, and shall not serve as a basis for any other mult ...

According to Chinese patent law, the statutory limitation for action against patent infringement is two years, computed from the date when the patentee or the interested party knows or has reasonable grounds to know about the infr ...

The two months grace period (the restoration procedure) is not applicable to a Chinese conventional patent application (a direct Chinese filing within one year based on a foreign application under Paris Convention). That is, the o ...