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

Types of search
Work Unit (Documentation unit))
Record (L)
AB
Section (P)
Record (L)
AB section
Paragraph (S)
AND
OR
NOT
Figure: Proximity operators in DWPI
The (P) operator is used to link search terms within one section of the abstract:
=> S ((MAGNET?) (P) (INDUCTION?))/NOV
L7 2115 ((MAGNET?) (P) (INDUCTION?))/NOV
=> D L7 HIT
L7 ANSWER 1 OF 2115 WPINDEX COPYRIGHT 2006 THE THOMSON CORP on STN
NOV NOVELTY - The motor has an induction rotor with a shaft
rotatably inserted into a center of a stator. A synchronous rotor (130) is
slid in a longitudinal direction of the shaft between the stator and the
induction rotor. Another synchronous rotor (140) is slid in the
direction of the shaft between the stator and the induction
rotor, where a magnetic flux of the synchronous rotors is varied
according to a variation of an applied voltage.
The (S) operator is used to link search terms within a single text paragraph:
=> S ((MAGNET?) (S) (INDUCTION?))/NOV
L8 2111 ((MAGNET?) (S) (INDUCTION?))/NOV
=> S L7 NOT L8
L9 4 L7 NOT L8
=> D L9 HIT
Here the search terms can be found in different paragraphs.
L9 ANSWER 1 OF 4 WPINDEX COPYRIGHT 2006 THE THOMSON CORP on STN
NOV NOVELTY - A urine detection system, comprises:
(1) an inducer for
generating magnetic field within an effective distance of
potentially wetted area;
(2) an energy-converting module for
conditionally engaging in mutual induction with the inducer; and
(3) an analyzing module for constructing and applying magnetic
energy distribution function to a set of stored parameters corresponding
to known wetness conditions.
17.5 Notes on individual databases
In the Derwent World Patents Index, invention level, the titles and abstracts are newly formulated by the
database producer (see the database description). Often more than one abstract is entered into the database for the
same invention (from different publications in the patent family). The words from the title and abstract (incl. ABEQ,
ABEX, ABDT and the sections of the abstracts) are indexed in the Basic Index (but ABEX and ABDT are displayable in
the subscriber files only). They can be searched using left and right truncation. Additionally, the words of the title
are available in the Basic Index in their grammatically basic forms as Title terms (also searchable in the /TT field). At
the same time the proximity relations (i.e. the order of the individual words) are maintained. A thesaurus is available
for the /TT field where the preferred form is shown:
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