Guide to STN Patent Databases – Basic Version - Paton - TU Ilmenau
Guide to STN Patent Databases – Basic Version - Paton - TU Ilmenau
Guide to STN Patent Databases – Basic Version - Paton - TU Ilmenau
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178<br />
<strong>Guide</strong> <strong>to</strong> <strong>STN</strong> <strong>Patent</strong> <strong>Databases</strong><br />
Parallel free-text searching in more than one database (mono- or multilingual)<br />
SDI searches in DWPI and WPIFV<br />
Name searches using EXPAND lists<br />
Text searches or SDI searches for all patent documents relevant <strong>to</strong> Germany in the PATDPAFULL, EPFULL,<br />
and PCTFULL databases.<br />
After a multi-file search, the documents retrieved should be sorted in<strong>to</strong> family groups by using the FSORT<br />
command. This allows for documents of the same patent family being easily identified and, if necessary, eliminated.<br />
24.3 Identifying duplicates<br />
The DUPLICATE command can be used in multi-file searches in order <strong>to</strong> identify and, if necessary, eliminate<br />
duplicates. This function can be used in all the databases dealt with in this guide.<br />
In order <strong>to</strong> identify duplicates the DUPLICATE command uses the publication country, document number, and<br />
publication date.<br />
In most cases duplicates can be detected, except for the following cases:<br />
Chemical Abstracts: The DUPLICATE command uses only the data of the first line of the PI field. Documents<br />
entered as Equivalent in the Chemical Abstracts will not be found as duplicates.<br />
INPADOCDB/INPAFAMDB: The DUPLICATE command uses only the data from the PI field of the first<br />
publication. The other publications are not used.<br />
PATDPA: Of the PI field only the first line (latest publication) is used. The other (earlier) publication levels are<br />
not considered.<br />
World <strong>Patent</strong>s Index: The DUPLICATE command uses only the data of the <strong>Basic</strong>. Thus, documents only entered<br />
as Equivalent in the World <strong>Patent</strong>s Index will not be detected as duplicates.<br />
DPCI: The DUPLICATE command cannot be used.<br />
Generally it is, however, preferable <strong>to</strong> use the FSORT command <strong>to</strong>gether with D PFAM instead of the DUPLICATE<br />
command if only one member of the patent family is <strong>to</strong> be displayed.<br />
As INPADOCDB has standardised and current priority numbers it is advisable <strong>to</strong> include INPADOCDB in an FSORT<br />
command for a more complete duplicate and family identification; see Multi-file search example, Full-text<br />
databases .<br />
24.4 Crossover using the OS field<br />
Field From database To database<br />
OS CA CASREACT, MARPAT<br />
USPATFULL/USPAT2 CA<br />
USPATOLD CA<br />
DGENE DWPI<br />
ENCOMPPAT DWPI<br />
IFIPAT CA<br />
PATDPA CA<br />
In the OS field usually the name and Accession Number of the other database are specified and may be used <strong>to</strong><br />
retrieve the corresponding document in that database. Crossover <strong>to</strong> the other database is carried out with the help<br />
of SELECT: (Illustrated here by a search example from PATDPA.)<br />
=> SEL 1- OS<br />
E1 THROUGH E4 ASSIGNED<br />
=> D SEL<br />
E1 3 CA/OS<br />
E2 1 87:134706/OS<br />
E3 1 92:28621/OS<br />
E4 1 98:215483/OS
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