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Boolean operators

You can combine your search terms using the Boolean operators AND, OR and NOT. You can use a maximum of nine operators per input field, and a total of nineteen within the search mask as a whole.


The OR operator

You can use the OR operator to extend the range of your search.

Example: car OR automobile OR vehicle

This query will return all documents containing at least one of the three terms.

OR is the default operator for the publication number , publication date , application number and priority number fields.


The AND operator

You can use the AND operator to limit the range of your search. Your query will return only those documents which contain all the terms combined with the AND operator.

AND is the default operator for the title , abstract , inventor , applicant , CPC and IPC fields.


The NOT operator

You can also use the NOT operator to limit the range of your search.

Example: nail NOT finger

Your query will return only those documents which do not contain the term following the NOT operator.

NOT cannot be placed at the beginning of a search field. It can only be entered after a search term.


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