Date range query with automatic cross lingual expansion

[Gerard]

A query like:

("electric vehicle") AND DP:[01.01.2000 TO 01.01.2017]

leads to an error "unbalanced parentheses")

and the query :

DP:[01.01.2000 TO 01.01.2017] AND ("electric vehicle")

leads to the expansion of DP:[01.01.2000 TO 01.01.2017] considered as a search term and to no result...

How do you select a date range by using automatic cross lingual expansion?

[patentscope-wipo]

Once you have obtained the results using CLIR in automatic mode, you can refine your query by adding the date range you are interested in: