This table contains the publication and application number formats used in patentGate.
Publication numbers
Country | Number format | Description | Valid (years) | Example |
DE | YYnnnnn | two digit year minus 50 + 5 digit number | to 1994 | DE 4101234 |
DE | YYnnnnn | two digit year + 5 digit number | Utility model to 1994 | DE 9301234 |
DE | [1-6]YYnnnnn | Prefix 1 (Patent), 2 (Utility model), 5/6 (Translation) + two digit year + 5 digit number | 1995 to 2003 | DE 10301234 |
DE | [1-6][0-9]YYYYnnnnnn | Prefix 10 (Patent), 20 (Utility model), 60 (Translation) + four digit year + 6 digit number | since 2004 * | DE 102020012345 |
EP | nnnnnnn | up to 7 digit number | since 1978 | EP 3001234 |
US | nnnnnnnn | up to 8 digit number | Grants since 1870 * | US 10001234 |
US | YYYYnnnnnnn | four digit year + 7 digit number | Applications since 2001 * | US 20030123456 |
WO | YYnnnnn | two digit year + 5 digit number | to 2001 | WO 0001234 |
WO | YYnnnnnn | two digit year + 6 digit number | 2001 to 2003 | WO 02012345 |
WO | YYYYnnnnnn | four digit year + 6 digit number | since 2004 * | WO 2012012345 |
CN | nnnnnnnnn | 9 digit number | A, B und U * | CN 100123456 |
KR | YYYYnnnnnnn | four digit year + 7 digit number | A publications, remove prefix 10 from depatisnet * | KR 20070123456 |
KR | nnnnnnnnnn | up to 9 digit number | Grants * | KR 101011179 |
Application numbers
Country | Number format | Description | Valid (years) | Example |
DE | [1-6][0-9]YYYYnnnnnn | Prefix 10 (Patent), 20 (Utility model), 60 (Translation) + four digit year + 6 digit number | since 2004 * | DE 102020012345 |
EP | YYnnnnnn | two digit year + 6 digit number | since 1978 * | EP 20192172 |
US | nnnnnnnn | two digit serial number + 6 digit number | since 2001 * | US 17012345 |
WO | PCT/CCYYYY/nnnnnn | PCT + / + application country + four digit year + / + 6 digit number | since 2004 * | PCT/EP2012/012345 |
CN | YYYYnnnnnnn | four digit year + 7 digit number | since ???? * | CN 20160123456 |
KR | YYYYnnnnnnn | four digit year + 7 digit number | since ???? * | KR 20160123456 |