https://www.epo.org/en/service-support/faq/searching-patents/open-patent-services/search-queries-tips-and-tricks

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

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...

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...

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Search queries - tips and tricks

Search queries - tips and tricks

Search queries - tips and tricks

Questions and answers

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

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?

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

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?

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

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".

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

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

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?