- via Paris Convention : 12 months from earliest priority date.
 
25 years
Filing Language: French
via Paris Convention Necessary documents:
- Abstract
 - Abstract Drawing
 - Claim
 - Specification
 - Drawing
 
Attachments (if any)
- Certified Priority Document
 - Declaration of Ownership/Certification of Employment/Assignment of priority
 - Assignment for Patent Right Transfer
 - Notification issued by CNIPA notify the applicant the application has passed through the security review
 - small entity declaration
 - inventor statement
 - Business license for company registration or articles of incorporation
 - Relevant information of references of other national applications with the same priority should be provided at the request of INPI
 
yes
2-3 years
The novelty grace period is 6 months before the filing date/priority date.
Reinstatement of Priority Accepted on Unintentional Grounds.
Filing Language: French
via Paris Convention Necessary documents:
- Abstract
 - Abstract Drawing
 - Claim
 - Specification
 - Drawing
 
Attachments (if any)
- Sequence Listing (PDF format and TXT format)
 - Certificate of Deposit of Microorganisms and its French translation
 - Certificate of Microbiological Survival and its French Translation
 - Certified Priority Document
 - Declaration of Ownership/Certification of Employment/Assignment of priority
 - Assignment for Patent Right Transfer
 - Notification issued by CNIPA notify the applicant the application has passed through the security review
 - Business license for company registration or articles of incorporation
 - Relevant information of references of other national applications with the same priority should be provided upon request of INPI)
 
- via Paris Convention : 12 months from earliest priority date.
 - Validation of European Patent in EPO member states: 3 months from the date of European patent grant.
 
6-8 months
INPI only conducts a formality examination of the invention patent application, but still needs to pay the search fee within one month from the filing date and conduct a search by the EPO, and the search result does not affect the granted result.