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, DocDB code: E

NUMBER FORMATS

nnnnn/LLL/yyyy    application numbers (> 1972)

• 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

nnnnnn    publication numbers (> 1912)

• up to six digits for the serial number (n)
• no city code
• no year