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Canadian Patents Database
Boolean Search Example
Boolean Text Search Example #1
This example finds, by list of fifty, the patents that were issued between October 1, 1989, and December 31, 1999,
and contain "controller" in the Title field and "Smith" in the Owner field.
Boolean Text Search Example #2
This example finds, by list of five hundred, the canadian patent documents under the IPC subclass "A63B" or "A63C"
which has been laid open in 1999.
Boolean Text Search Example #3
This example finds, by list of one hundred, the patents that were issued in Canada
and that were published by WIPO in 1996.
Boolean Text Search Example #4
This example finds, by list of fifty, the patent documents that contain in the Title field the word "tooth" and also
"brush" or the word "toothbrush".
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