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Citations are provided for EP and WO, and for all searches made at the EPO (for BE, CH, EP, FR, GB, NL, TR), as well as for US from 1948 and DE from 1965.
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Note: DOCDB data for EP and WO associates citations with the first publication only, regardless of the stage at which the citation was made. For Euro-PCTs, all citations from the international search report are presented in the first publication of the WO record (and are not repeated in the EP A-level record). |
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source name | Indicates when or by whom the citation was made.
Codes used for source of citation:
CH2=Chapter 2, SUP=Supplementary search report, ISR=International search report, SEA=Search report, APP=Applicant, EXA=Examiner, OPP=Opposition, TPO=Third party observation, PRS=Pre-grant pre-search, APL=Appeal, FOP=Filed for oppositionSee Citation Sources for a list of sources. |
source category | Only EP and WO. The category indicates the relevance of the citation. Values include the following:
A=technological Technological background, D=document Document cited in application, E=earlier Earlier patent document, 1=document Document cited for other reasons, O=nonNon-written disclosure, P=intermediate Intermediate document, T=theory Theory or principle, X=relevant Relevant if taken alone, Y=relevant Relevant if combined with other documents. |
patent-citations/patcit
| Attribute | Description |
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| dnum | Document number |
| dnum-type | Document number type. Populated with "application" if the citation refers to an application. If no dnum-type is present, then the citation is referencing a publication. |
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country | 56 | Country is represented by a standard 2-character code based on WIPO ST.3. |
doc-number | 56 | doc-number is generally provided in DOCDB-normalized format. An exception to this is made for WO documents, where the doc-number is normalized to YYYYnnnnnn.
Patent document numbering is a complex subject, and these are some illustrative examples: US: 3732068, RE31783, 5382 (plant), D436240 (design), EP: 0129539, WO: 1985000002, JP: 60000013, 2006000022, DE: 3244404.
For a complete discussion of document numbers over time and over multiple authorities, please see: Number format concordance - publication numbers at
https://www.epo.org/searching-for-patents/helpful-resources/data/tables/regular.html.
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kind | 56 | Kind code |
| rel-passage | 56 | Relevant passage within cited document |
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