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- Fri Jan 11, 2019 12:02 pm
- Forum: Global Patent Index (GPI)
- Topic: no results to query with only excluded items in criteria
- Replies: 1
- Views: 6627
no results to query with only excluded items in criteria
Good morning, please why this query clas=F24F and APC = NOT CN and PUD [2018-08, 2018-12] gives 0 results when this query clas=F24F and APC = CN and PUD [2018-08, 2018-12] gives 14561 results? I wanted to give APC without CN, KR and JP. How I have to formulate the query criteria with only excluded i...