Patents Publication Enquiry

Publication coverage: 3 January 2007 (PDJ 6137) to 27 April 2016 (PJ 6623)

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Publication number

Valid publication numbers for this search facility must be of the format - GB2nnnnnn

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Publication date

Choose the required Publication week and year.

Your search can also be refined by choosing a document type

Newly published 'A' specifications are added on a weekly basis at or shortly after 1pm on the day of publication. This avoids the possibility of earlier publication dates in different time zones.

Document Type Explanation

A  -  Published Application
A8 - Corrected Front Page of a GB Published 'A' Application
A9 - Complete Re-issue of a GB Published 'A' Application
B  -  Granted Specification
B8 - Corrected Front Page of a GB Granted 'B' Specification
C  -  Complete Re-issue of a GB Granted 'B' Specification
C2 - Complete Re-issue of a re-issued GB Granted 'C' Specification


The Patents Publication Enquiry Service covers all GB applications published and granted after 3 January 2007 and all GB corrected documents published after 1 April 2010.

You can access electronic copies of the majority of GB applications published prior to 3 January 2007 and GB patents granted after June 2002 through the Espacenet advanced patent search External Link.

If you require copies of GB applications published, granted or corrected which are unavailable within either the Publication Enquiry Service or Espacenet coverage these can be purchased in hard copy through our sales department External Link.

Our Patents publication enquiry service is our official publication means.


This service is usually available 24 hours a day, 7 days a week.
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8:30am to 5:00pm (UK time) Monday to Friday.
Contact us by telephonePhone 0300 300 2000 or +44 (0)1633 814000
9:00am to 5:00pm (UK time) Monday to Friday.