PUBLN_FIRST_GRANT?

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nico.rasters
Posts: 140
Joined: Wed Jul 08, 2009 5:51 pm
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PUBLN_FIRST_GRANT?

Post by nico.rasters » Mon Dec 30, 2013 5:53 pm

The variable `publn_first_grant` (in `tls211_pat_publn`) puzzles me a bit.
Could you please verify the following assumptions:
  • Not all publications are grants (but all grants are publications).
  • Therefore, not all applications that have publications have been granted.
  • Codes "450" and "470" are the key to identify the grant date means that "PUBL. TAG ST.30" in Concordance_of_kind_codes_20130206.xls will give us the (publn_auth, publn_kind) pairs that point to a grant.
  • Subsequently, pat_publn_id 3177497 instead of 3177498 should have `publn_first_grant`=1 (these are both publications belonging to appln_id 2759225; however, pat_publn_id 3177498 has publn_kind A8 which has code A45... this is based on PATSTAT October 2013).
  • When there are multiple "grant" publications belonging to the same application, the one with the earliest date will have `publn_first_grant`=1 (the other will be 0).
  • When `publn_auth`="WO", `publn_first_grant` is always 0. This is because an international filing can not be granted.
  • When `publn_auth`="EP", `publn_first_grant` is 1 when `publn_kind` is B1, B2, or B3. In other words, a European filing can be granted.
________________________________________
Nico Doranov
Data Manager

Daigu Academic Services & Data Stewardship
http://www.daigu.nl/


mkracker
Posts: 114
Joined: Wed Sep 04, 2013 6:17 am
Location: Vienna

Re: PUBLN_FIRST_GRANT?

Post by mkracker » Wed Jan 08, 2014 11:42 am

Hi Nico,

Roughly spoken, most offices publish their patents first as applications and later, if the applications are granted, as granted patents.

I repeat your points and add my responses:
  • ● Not all publications are grants (but all grants are publications).
    Correct - see above.
  • ● Therefore, not all applications that have publications have been granted.
    Also correct.
  • ● Codes "450" and "470" are the key to identify the grant date means that "PUBL. TAG ST.30" in Concordance_of_kind_codes_20130206.xls will give us the (publn_auth, publn_kind) pairs that point to a grant.
    Yes, that is how DOCDB is deriving whether a particular publication has a granting effect or not. Because offices use different codes which also change over time, we have to apply a disclaimer: "Although the EPO has taken great care in analysing the grant information, this process is the result of interpretations and assumptions for which no responsibility whatsoever can be accepted."
  • ● Subsequently, pat_publn_id 3177497 instead of 3177498 should have `publn_first_grant`=1 (these are both publications belonging to appln_id 2759225; however, pat_publn_id 3177498 has publn_kind A8 which has code A45... this is based on PATSTAT October 2013).
    I agree - this looks strange. We will follow this up. Thanks for reporting this.
  • ● When there are multiple "grant" publications belonging to the same application, the one with the earliest date will have `publn_first_grant`=1 (the other will be 0).
    Yes - this is as described in the Data Catalog.
  • ● When `publn_auth`="WO", `publn_first_grant` is always 0. This is because an international filing can not be granted.
    Correct - only national /regional offices grant patents.
  • ● When `publn_auth`="EP", `publn_first_grant` is 1 when `publn_kind` is B1, B2, or B3. In other words, a European filing can be granted.
    Yes.
---------------------------
Martin Kracker, EPO - PATSTAT
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Martin Kracker / EPO


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