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

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Guide to STN Patent Databases
For certain types of division it may be that the application year in the application number does not match
the application year in the date.
L17 ANSWER 1 OF 1 INPADOCDB COPYRIGHT 2007 EPO/FIZ KA on STN
PI EP 1055472 B1 20010912
AI EP 2000-116860 A 19950410
PRAI DE 1994-4438991 A 19941031 (DEA, 20070608)
EP 2000-113207 A 19950410 (EPA3, 20070608)
EP 1995-105379 A 19950410 (EPA3, 20070608)
LEGAL STATUS
AN 23746740 INPADOCDB
20001129 EPAC DIVISIONAL APPLICATION (ART. 76) OF:
EP 710518 P
20001129 EPAC DIVISIONAL APPLICATION (ART. 76) OF:
EP 1043100 P
20001129 EPAK + DESIGNATED CONTRACTING STATES:
EP A1
CH DE ES FR GB IT LI
Particulars of the priority fields in the various databases
The PRAI, /PRN field only has data if a foreign priority was actually claimed: USPATFULL, USPAT2,
USPATOLD, IFIPAT
The PRAI, /PRN field does not exist: RUSSIAPAT
The PRAI, /PRN field may contain non-standardized priority numbers: PATDPAFULL, PCTFULL
There is a PRAO, /PRNO field that contains the original (non-standardized) priority
numbers. This field is filled either in addition to the PRAI field or only this field is
the pre-defined display formats:
PATDPAFULL, EPFULL,
PCTFULL, FRANCEPAT,
KOREAPAT, RUSSIAPAT,
FRFULL, GBFULL
In some databases the original application numbers are recorded in the APO field (KOREAPAT, RUSSIAPAT).
These fields are not included in the pre-defined display formats. This may apply to document numbers in
the PNO field too.
21.5 Search by document number
Document numbers (Publication Numbers), just as Application Numbers, can have very varying formats depending
on the patent office, e.g. just a serial number, a number with preceding year, identical with the digit sequence of the
Application Number, etc. Often, to distinguish the publication status within the patent procedure, the Document
Kind Code is specified as well. Examples:
DE 19919951 A1
DE 10 2004 002 764 A1
DE 20 2004 000 023 U1
EP 0 050 443 B1
US 4,718,426
US 2001/0006158 A1
WO 99/12345 A1
WO 00/04255 A1
When searching for a document number (SEARCH field /PN) on STN International, a uniform format is to be used in
all databases. This format has the following structure:
For numbers of up to 7 digits:
CCnnnnnnN
For numbers of 8 digits:
CCNNNNNNNN
For numbers of 12 digits:
CCZZYYYYNNNNNN
For numbers with a leading/trailing year (19YY):
CCYYNNNNN