Pre-examination System——One Way to Expedite Prosecution of Invention Patents in China
Besides patent prosecution highway (PPH) and prioritized examination, pre-examination system is also one way to expedite prosecution of invention patents in China.
From 2016, many intellectual property protection centers have been successively set up throughout China. These IP protection centers perform patent pre-examination services for patent applications. Applications that pass pre-examination can quickly enter the examination channel before the CNIPA.
How fast?
According to an official news release, the time to grant a patent application submitted to CNIPA after passing pre-examination can be shortened. It is about 3 months for invention patents; about one month for utility model patents; and less than 10 days for design patents.
What are the requirements for requesting pre-examination?
In order to apply for pre-examination before an IP protection center in China, an application must satisfy the following four conditions:
a) The applicant should submit the pre-examination application to the proper IP protection center prior to formally submitting the patent application to CNIPA;
b) The registered address of the applicant must be in a location where an IP protection center is located;
c) The applicant has been recorded before the IP protection center; and
d) The application submitted must be within the technical field of the IP protection center.
It should be noted that different IP protection centers in China provide pre-examination services in different technical fields. Therefore, the applicant should check whether their inventions are within the technical field of a specific IP protection center.
Can foreign applicants request for pre-examination?
It should be noted that the pre-examination system is not applicable for Chinese national phase entry application of a PCT international application.
In addition, the registered address of the applicant (enterprise, university, or research institute) must be in a location where an IP protection center is located, and the application submitted must be within the technical field of the IP protection center.
Therefore, if a foreign applicant wants to file a request for pre-examination, the applicant should have an entity registered in China.
Different IP protection centers provide patent pre-examination services in different technical fields.
The Beijing Center mainly focuses on the fields of generating new information technology and high-end equipment manufacturing.
The Shanghai Pudong Center focuses mainly on the fields of biomedical and high-end equipment manufacturing.
The Guangdong Center focuses mainly on the fields of new generation of information technology and biological industry.
So, if a foreign applicant wants to register a company in China to be qualified for pre-examination, he/she should choose a place where 1) a protection center is located; 2) the technical filed of the protection center is close to the technical field of the company.











