Numbering system - India
Document types and kind codes
18 month publication
- publication of application
- pre-grant opposition
- WIPO code: A
Publication of specification
- post-grant opposition (>2005)
- WIPO code: A1
Patent of addition
- published with a new number
- WIPO code: A7
Number formats
yyyyJTnnnnnn application numbers (> 2016)
- four digits for year of filing (yyyy)
- one digit for the jurisdiction of the Indian Patent Offices (J)
- one digit for type of application (T)
- six digits for continuous running serial numbers for all Patent Offices in India (n)
J = jurisdictions of Indian Patent Offices:
1 = Delhi
2 = Mumbai
3 = Kolkata
4 = Chennai
T = type of application:
1 = Ordinary Application
2 = Ordinary-Divisional Application
3 = Ordinary-Patent of Addition Application
4 = Convention Application
5 = Convention-Divisional Application
6 = Convention-Patent of Addition Application
7 = PCT National Phase Application
8 = PCT National Phase-Divisional Application
9 = PCT National Phase Patent of Addition Application
nnnnn/LLL/yyyy application numbers (> 1972)
- up to five digits for the serial number (n)
- three digits for the filing office/city code (L)
- four digits for the year (y)
(nnnnn/LLLNP*/yyyy PCT application numbers >2003)
(IN/PCT/yyyy/nnnnn/LLL PCT application numbers < 2003)
* NP for national phase
Filing offices (LLL) | |
---|---|
Kolkata (formerly Calcutta) | = KOL (CAL) |
Mumbai (formerly Bombay) | = MUM (BOM) |
Chennai (formerly Madras) | = CHE (MAS) |
Delhi | = DEL |
nnnnnn publication numbers for granted patents (> 1912)
- up to six digits for the serial number (n)
- no city code
- no year
Publication of an application is not assigned a separate publication number and is published with the application number.