Report:Esp@cenet/Data Coverage/Patent Coverage/Citation Coverage
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Citation Coverage
For the purpose of this article, the term "citation" refers to a patent citation. To get more information on how we use the term citation, please see the citations article.
Patent Citations
Examiner search report data with citation information is loaded into the esp@cenet system for European Patent Office (EP) and Patent Cooperation Treaty (WO/PCT) documents only. Users should be aware of this coverage limitation when citation searching in esp@cenet. For example, if an EP document cited a US document, that citation relationship would appear in esp@cenet for both documents. However, if one US document cited another US document, this relationship would not be indicated in the system for either document.
Forward citation searching is also enabled by the system (for more about this functionality, see Viewing Citations).
Non-Patent Citations
Typical non-patent citation data (e.g. non-patent citations published on the face of patent documents) is not available as electronic text in esp@cenet (although it can of course be viewed via document facsimile images).
However, esp@cenet is notable in that it contains records which correspond to non-patent documents which have been classified by EPO examiners and/or cited in an EPO search report. These documents are known as XP documents, and some bibliographic information for these documents is included in esp@cenet. When a patent document cites one of these XP documents, a hyperlink to the XP record may be included in the patent’s citation data. See the XP Documents section for more information about these records.
