Classification-based query on OPS

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ms5941
Posts: 1
Joined: Fri Feb 04, 2022 4:04 pm

Classification-based query on OPS

Post by ms5941 » Fri Feb 04, 2022 5:37 pm

Hi,

Is there an easy way to access worldwide patents of a particular CPC class through OPS? (All countries and all dates)

Thank you!


EPO / OPS Support
Posts: 1298
Joined: Thu Feb 22, 2007 5:32 pm

Re: Classification-based query on OPS

Post by EPO / OPS Support » Mon Feb 07, 2022 10:33 am

Hi

Theoretically yes, but practically it might be difficult to do that because OPS only gives first 2000 results per every query so you would need to limit every request a lot in order to catch all documents

If you read OPS documentation on the website: https://www.epo.org/searching-for-paten ... s/ops.html (under "Further information") you will see list of field identifiers for CQL search and you can try them via OPS Published Services - Search query: .../3.2/rest-services/published-data/search

Depending on what exactly you are looking for or how much data you need you could consider bulk data product instead:
DOCDB in XML: https://www.epo.org/searching-for-paten ... docdb.html
PATSTAT Online or in a bulk (PATSTAT GLOBAL): https://www.epo.org/searching-for-paten ... tstat.html

Regards,
Vesna for OPS support


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