23/07/2015
Things you need to know to file an invention application in China:
I. Required information/ documents:
1. An order letter containing:
a) Applicant’s and inventor’s name, address and nationality;
b) The nationality, the filing date and the application number of the prior application(s), if priority(ies) is/are to be claimed.
2. Certified Copy of the Priority documents, if a priority(ies) is/are claimed (which must be filed no later than three months from the Chinese filing date);
Please be advised that if the applicant of the prior application is not consistent with that of the application to be filed in China and the assignment is not recorded in the priority document, an original assignment or a legalized copy should be submitted together with the priority document.
3. An executed Power of Attorney (which can be late filed within two months from the date of filing);
4. A patent specification, including description, claims, abstract and drawings if needed;
II. Processing time*:
1. 3-6 months’ preliminary examination on documents filed;
2. After the preliminary examination, the application will be published promptly after the expiration of 18 months from the filing date, or the earliest priority date (upon the request of the applicant, this application could be published earlier);
3. After the publication, the applicant shall request for substantive examination before the China Patent Office within 3 years from the filing date;
4. After substantive examination, a certificate will be issued and the announcement about the patent will also be issued.
It takes at least 2.5~3 years to obtain a Patent Certificate for an invention patent