FAQ - Search queries - tips and tricks

Questions and answers

FAQ

Searching for priority number using DOCDB format in OPS Published Services gives no results although the document exists in Espacenet. I am using following query: http://ops.epo.org/3.2/rest-services/published-data/priority/DOCDB/US.87563407.A1/biblio

OPS Published services don’t support searches for application or priority numbers in DOCDB format.

Y...

FAQ

Searching priority number using EPODOC format in OPS family service http://ops.epo.org/3.2/rest-services/family/priority/EPODOC/US2007875634/biblio, returns an error message, why is that?

OPS family service only supports application/priority numbers in DOCDB format:

http://ops.epo.org/3...

FAQ

How do I find citations and cited documents via RESTful OPS?

To find citations, you have to do a search via the Published Data service, using a CQL request...

FAQ

When using the bibliographic search request, I cannot find publications with the keyword "x-ray" in the title. Why is that?

Currently, due to technical reasons, some queries with words that have special characters return no...

FAQ

When I use the bibliographic search request, why does a "published before" type of CQL query deliver documents that do not have any publication date at all?

Currently, if the publication date is unknown, the system stores a value "0000-00-00", as a date is...

FAQ

I have a US publication number US6808849 for a granted patent. What do I have to do to find the related published application number US2003064291?

One obvious way is to make a simple bibliographic retrieval for patent US6808849 while setting the...

FAQ

What do I have to do to retrieve a single PDF file for a given publication?

Images are not stored in convenient PDF files which OPS can access and deliver without further...

FAQ

Why can't I find full texts for certain publications in OPS? For example, on Espacenet I get the full text for document EP0714461 but a description retrieval in OPS leads to the message "The requested data could not be found".

Euro-PCT applications (e.g. EP0714461 A1) are not republished by the EPO because they have already...

FAQ

I keep getting an error message from OPS. What does it mean?

There are several situations when the OPS system responds with an error message. Often the reason is...