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https://www.epo.org/fr/node/446743

Numbering system - Chinese Taipei (TW)

Document types and kind codes

GONGKAI (A)

公開
  •  unexamined patent publication (>2003)

GONGGAO HEZHUN

公告核准
  • examined patent publication (<2004)
  • examined utility model publication (<2004)

GONGGAO FAZHENG (B/U)

公告發證
  • granted patent publication (>2004)
  • registered utility model publication (>2004)

Number formats

(y)yy t nnnnn application numbers
  • two digits for the Republican year* (y)
  • one digit for the type of right (t)
  • five digits for the serial number (n)
* Conversion rule for Republican years:
Republican year + 1911 = Western year (example: Republican year 98 = 2009)

Note: from 2011 (= Republican year 100) onwards, the year part in the application numbers will comprise three digits.
 
yyyy nnnnn unexamined publication numbers
  • four digits for the Western year (y)
  • five digits for the serial number (n)
nnnnnn examined publication numbers
  • six digits for the serial number (n)
t nnnnnn grant numbers
  • one digit for the type of right (t)
  • six digits for the serial number (n)

Types of patent right (t)

 application numbers:
1 - invention patent
2 - utility model
3 - design

grant numbers:
I - invention patent
M - utility model
D - design