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 <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. An exception to this is made for WO documents, where the doc-number is normalized to YYYYnnnnnn. 
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.

kind13The 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.
date14Date of publication (YYYYMMDD)
lang12Language 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.
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