Selecting patents with BLANK fields

Hi Bruno

I have a set of patents with Pertinence=1

Then I do a local search DOP/1 ... and there appear:
- all patents with pertinence = 1
- all patents with pertinence "not yet evaluated"

This only happens with DOP/1, so perhaps this is a little bug to check, but this also leads me to some more questions:

- How could I select all the patents with pertinence "not yet evaluated"?
- Could I use other fields and select patents with no data? eg
- blank title
- blank assignee
- blank priority data
- blank publication date
- etc

Regards
_________________
Juan Carlos Vergara

Hi Juan,

I check that today.
For Blank fields, humm Rolling Eyes

i try to find a solution.
_________________
Regards / Cordialement
Bruno Mannina
Technical Support / Support Technique

Hi Bruno, sometimes I ask you my doubts before checking what I'm asking, sorry.

I have just checked now that the following local searches run OK:

- blank title: ti/"no title available"
- blank assignee: app/none
- blank inventor: inv/none
- Blank name: name/none

- Blank IPC: IPC/none
- Blank ECLA: EC/none
- Blank Classification: CLASS/none

- blank AP data: * and not ap/*
- blank PR data: * and not pr/*
- blank AP/PR data: * and not appr/*

BUT I have not succeeded with this one

- blank publication date: I have been trying:

* and not pdy/* => don't run

So, I need your help just in this search.

regards
_________________
Juan Carlos Vergara