Maximum number of terms in a query

This space is made available to users of Open Patent Services (OPS) web-service and now also to users of EPO’s bulk data subscription products such as 14. EPO worldwide bibliographic database (DOCDB), 14.11 EPO worldwide legal status database (INPADOC), 14.12 EP full text data, 14.1 EP bibliographic data (EBD)and more.

Users can ask each other questions, exchange experiences and solutions, post ideas. The moderator will use this space to announce changes or other relevant information.
Post Reply

Posts: 1
Joined: Thu Feb 19, 2015 10:03 am

Maximum number of terms in a query

Post by Giancarlo » Thu Feb 19, 2015 10:06 am

Hello everybody,

I'm testing the OPS service.
It seems that the service accepts as maximum 10 terms for field.
Is there a way to use more than 10 terms?

The error message I get is the following:

Too many terms within an index scope. There can not be more than 10 terms within 'ti' index scope

thank you very much
all the best

EPO / OPS Support
Posts: 1142
Joined: Thu Feb 22, 2007 5:32 pm

Re: Maximum number of terms in a query

Post by EPO / OPS Support » Thu Feb 19, 2015 7:50 pm

Dear user,

Here are limitations that apply to CQL search in OPS Publish Services and in Espacenet Smart search:
You can enter up to 20 search terms in total, with a maximum of ten per searchable piece of bibliographic data.
Left truncation is not supported, nor is truncation within a word.
Search terms have to be entered in English to ensure the correct results are retrieved.
Diacritical characters (umlauts and accents) and slashes are not allowed when searching.
Stop words, which are common words such as FOR, WITH, THE, BUT, AND, OF, ANY, etc, are not searchable as they would otherwise produce too many results.
Full texts (claims and description) are not searchable.

For more information on the Smart search function see the following pages in Espacenet Help:
Smart search
Smart search - entering queries
Smart search - field identifiers
Smart search - operators

Espacenet Help is available at ... opic=index

Kind regards,
OPS support

Post Reply