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

27 PALMOLIVE/PA
27 (COLGATE (S) PALMOLIVE)/PA
FILE 'WPINDEX'
3473 COLGATE/PA
3443 PALMOLIVE/PA
3441 (COLGATE (S) PALMOLIVE)/PA
L1 QUE (COLGATE (S) PALMOLIVE)/PA
Search examples
37.5 Cross-file search with overlapping numbers
Transferring patent numbers between CAPLUS, DWPI and INPADOCDB may sometimes cause trouble, in particular if
there are JP, CN, or TW patents in the search result. This is caused by overlapping serial numbers for different types
of publications, which makes the respective publication numbers ambiguous. The search result can be greatly
enhanced by using the PNK (publication number + publication kind code) field rather than the PN (patent number)
field in a cross-file search.
=> FIL CAPLUS
=> S CN1127574/PN
L1 1 CN1127574/PN
=> D TI PA PN
Searching the Chinese number CN 1 127 574 results in diferrent
patent families being retrieved in CAPLUS and DWPI.
L1 ANSWER 1 OF 1 CAPLUS COPYRIGHT 2011 ACS on STN
TI Method for producing enantiomerically pure esters
PA BASF A.-G., Germany
PATENT NO. KIND DATE
--------------- ---- --------
PI DE 19706337 A1 19980820
CA 2274247 A1 19980827
WO 9837225 A1 19980827
EP 968302 A1 20000105
JP 2001513628 T 20010904
CN 1127574 C 20031112 FIL WPINDEX
=> S CN1127574/PN
L2 1 CN1127574/PN
=> D TI PA PN
L2 ANSWER 1 OF 1 WPINDEX COPYRIGHT 2011 THOMSON REUTERS on STN
TI Universal power converter e.g for portable personal computer - uses first
voltage stage operated from mains, second voltage stage optimised for
battery supply and third voltage stage electrically coupled to portable
device power supply.
PA (ASTR-N) AST RES INC
PI WO 9501000 A1 19950105 (199507)* EN 18[2]
AU 9472495 A 19950117 (199521) EN
US 5414610 A 19950509 (199524) EN 7[2]
EP 705495 A1 19960410 (199619) EN 18[2]
EP 705495 A4 19961127 (199713) EN
CN 1127574 A 19960724 (199749) ZH FIL CAPLUS
=> S (EVONIK OR DEGUSSA)/PA AND C12N/IPC AND CN/PC
We now show the different results between using PN and PNK.
303