Filter vs. query seems to work differently. For instance:
A query when filtered with CPC H02K1 gives 823 results, while an unfiltered query with AND cl = "H02K1" is added returns 1224 items.
This seems odd or wrong or it's just me...
filter vs. query
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- Joined: Fri Mar 03, 2017 1:16 pm
Re: filter vs. query
Dear user,
Thank you for your question. There is a difference in the number of results because the field identifier "cl" searches for both the CPC and IPC symbols.
For example, a search for cl=H02K1 AND dual-rotor AND 2020 or for (cpc=H02K1 OR IPC=H02K1) AND dual-rotor AND 2020 gives the same result, i.e. 130 results today.
However, a search for CPC=H02K1 AND dual-rotor AND 2020 gives 91 results.
And a search for dual-rotor AND 2020 filtered with CPC=H02K1 gives also 91 results.
Kind regards,
Andrée
Patent Information Marketing
Thank you for your question. There is a difference in the number of results because the field identifier "cl" searches for both the CPC and IPC symbols.
For example, a search for cl=H02K1 AND dual-rotor AND 2020 or for (cpc=H02K1 OR IPC=H02K1) AND dual-rotor AND 2020 gives the same result, i.e. 130 results today.
However, a search for CPC=H02K1 AND dual-rotor AND 2020 gives 91 results.
And a search for dual-rotor AND 2020 filtered with CPC=H02K1 gives also 91 results.
Kind regards,
Andrée
Patent Information Marketing