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Range parameter

Posted: Sat Feb 21, 2015 9:22 pm
by majo
Hi everyone,

Hope you'll be able to help me out here - I really can't figure out what I am doing wrong.

I am trying to access information on all patents within a certain cpc-code. Doing that I am iterating over the range-parameter with steps of 100 from one to 12241. It works fine until I reach 2001-2100, why is that?

The scenario is reproducible in the developers console as specified here:

works fine:
http[colon][slash][slash]ops.epo[dot]org[slash]3[dot]1[slash]rest-services[slash]published-data[slash]search[slash]biblio?q=cpc%3DY02E10%2F72&Range=1001-1100

yields 400-error "Invalid query":
http[colon][slash][slash]ops[dot]epo[dot]org[slash]3[dot]1[slash]rest-services[slash]published-data[slash]search[slash]biblio?q=cpc%3DY02E10%2F72&Range=2001-2100

I have tried both GET and POST requests but none seem to work. Obviously I would prefer a POST-solution because the team asks that bulk data retrievals is to be done so.

Is there some kind of restriction I have missed? The preceding authentification works fine for me. I would not suspect that my quota is exhausted. Full content of the reply below:

Code: Select all

$doc
$file
[1] "<buffer>"

$version
[1] "1.0"

$children
$children$fault
<fault xmlns="http[colon][slash][slash]ops[dot]epo[dot]org">
 <code>CLIENT.InvalidQuery</code>
 <message>The request was invalid</message>
</fault>

attr(,"class")
[1] "XMLDocumentContent"

$dtd
$external
NULL

$internal
NULL

attr(,"class")
[1] "DTDList"

attr(,"class")
[1] "XMLDocument"         "XMLAbstractDocument"
Hope you'd be able to help and thanks in advance!

Re: Range parameter

Posted: Sat Feb 21, 2015 10:02 pm
by EPO / OPS Support
Hi,

If you read OPS documentation you will see that OPS is limited to 2000 results for one search. You have to limit your search strategy to get less than 2000,results in hit list. OPS is not meant for bulk downloading, for that you have to buy raw data products.

Regards,
OPS support