hello,
I want to search for patents which have certain Ecla classes as first class, but I don't seem to get beond (e.g.) C12N5. Is it possible to search with a more detailedd class? *truncation doesn't work...
Joined: 06 Jan 2005 Posts: 978 Mon 17 May 2010 Location: Marseille
Dear Frank,
Could you test with "Advanced Mode" in MP with:
Code:
ec=C12N5
By default, it's troncated. But carefull because there is 36040 patents if no range date are selected.
Truncation '*' for classification related indexes is allowed only for subclasses. _________________ Regards / Cordialement
Bruno Mannina
Technical Support / Support Technique
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