Guide to STN Patent Databases – Basic Version - Paton - TU Ilmenau

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Guide to STN Patent Databases
Kind Code Range Number format Example
from 2000 ZAYYYYNNNNNND ZA2003002123D
39.2 Application numbers
Overlapping numbers exist in the case of application numbers, too, and make it necessary to append a code for the
type of application and/or priority to the number.
Utility model application numbers have a U appended except Germany where the current application
number format includes the information that this is a utility model application,
For technical reasons (see above), there may be a need to create dummy application or priority numbers.
These have one of the following letters appended:
D application numbers,
T priority application numbers,
X application or priority numbers before 1920.
Additional codes:
Kind Code Range Number format Example
HUP seit 1990 HUYYYY-nnnnNP HU2002-3929P
MDP seit 2000 MDYYYY-nnnNP MD2004-3P
USP seit 1995 USYYYY-nnnnnNP US2004-567788P
N Digit, if necessary leading zeros
n Optional digit; without leading zeros or separators.
YYYY Year (may be two digits only before 2000)