https://www.epo.org/en/searching-for-patents/helpful-resources/patent-knowledge-news/patent-knowledge-snippets-28

Patent Knowledge Snippets

Publication of the EPO concordance table has been fully automated. The table is updated once a week and published for all users via the Bulk Data Distribution Service.  

The concordance table contains all publication number formats and kind codes, all application number formats and kind codes and the WIPO ST.30 tags. It is drawn directly from the business rule engine used by the EPO's prior-art team to process the bibliographic data.  

Patent publications do not only come with the familiar A-B, U-Y or D and S kind codes. In fact, almost the entire alphabet is used to cover all the different publications in the bibliographic datasets. When you come across a publication with an exotic kind code, you can use the concordance table to define it.  

As an example, the concordance table section for Chile is shown below. Each kind code comes with a number format and a description of the type of document. 

CC 

Description 

DOCDB KC 

Number until 31-12-1999 

Number as from 01-01-2000 

Type of document 

CL 

Chile 

A1 

ccyy'0'nnnnn 

ccyy'0'nnnnn 

"patent application" 

  

  

A2 

ccyy'0'nnnnn 

ccyy'0'nnnnn 

"Divisional patent application" 

  

  

A3 

ccyy'0'nnnnn 

ccyy'0'nnnnn 

"Revalidation patent application" 

  

  

n(nnnn) 

n(nnnn) 

"Granted patent" 

  

  

E1 

ccyy'0'nnnnn 

ccyy'0'nnnnn 

"Industrial drawing" 

  

  

ccyy'0'nnnnn 

ccyy'0'nnnnn 

"Precautional patent application" 

  

  

S1 

ccyy'0'nnnnn 

ccyy'0'nnnnn 

"Industrial design application" 

  

  

S2 

n(nnnn) 

n(nnnn) 

"Industrial design" 

  

  

U1 

ccyy'0'nnnnn 

ccyy'0'nnnnn 

"Utility model application" 

  

  

n(nnnn) 

n(nnnn) 

"Utility model" 

 

Keywords: Concordance table, automation, number format, kind code, WIPO ST.30, WIPO ST.16