publication-reference

 <publication-reference fvid="71329085" ucid="US-5551212-A" entity-status="large">
   <document-id>
     <country>US</country>
     <doc-number>5551212</doc-number>
     <kind>A</kind>
     <date>19960903</date>
     <lang>EN</lang>
   </document-id>
 </publication-reference>

Attribute

Description

fvid

Unique database-level integer identifier

ucid

See Common XML Attributes

entity-status

Description of filing entity based on number of employees (US only). Values include:

    • micro
    • small
    • large
    • unknown


publication-reference/document-id


Element

INID

Description

country

19

Country is represented by a standard 2-character code based on WIPO ST.3.

doc-number

11

doc-number is generally provided in DOCDB-normalized format. Exceptions include WO documents, where the doc-number is normalized to YYYYnnnnnn and US pre-granted documents where the doc-number is normalized to YYYYnnnnnnn. We also recommend checking the Release Notes for patent number or kind code changes.
Patent document numbering is a complex subject, as the examples below illustrate:


Patent AuthorityPatent Number
US3732068

RE31783
US (Plant)5382
US (Design)D436240
EP0129539
WO1985000002
JP60000013

2006000022
DE3244404


For a complete discussion of document numbers over time and over multiple authorities, see: Number format concordance - publication numbers at 
https://www.epo.org/searching-for-patents/helpful-resources/data/tables/regular.html.

kind13

The kind code is used to designate the publication stage of the document, including whether it is a published application or a granted patent. See ST.16.

Note that some documents (utility models, reissued patents, etc.) contain non-standard kind codes used by various patent-granting authorities. See the Kind Code Concordance List for a list of many of the kind codes corresponding to the different publication stages of a patent application.

date14Date of publication (YYYYMMDD)
Note: If no date is present and a document-id element exists, a default value of 00010101 (which may appear as 10101) or 19000101 is inserted. The 00010101 date is available in Solr responses only and is not present in the XML.
lang12Original language of publication, 2-character code based on ISO 639-2.
Note: The default value is "XX" if no language information is provided by the data source.

Further Reading

For information about the Solr search fields associated with this container, see Publication Information.