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CQL IPC search first ipc class?
Posted: Tue Jan 31, 2017 8:54 pm
i would like to search for the first class of a patent.
Which CQL querie do i have to use?
Re: CQL IPC search first ipc class?
Posted: Wed Feb 01, 2017 8:24 am
Please have a look at the OPS documentation, page 133, where you have all CQL field identifiers for OPS Published services listed. Documentation is avaialble here:http://www.epo.org/searching-for-patent ... .html#tab3
Just for information for otherwho might read this post; OPS Register has partially different identifiers and those you can see here: https://register.epo.org/help?lng=en&to ... identifier