30 Utility and 10 Design Patents
#101 in Ottawa
#1,172 in Canada
#89,610 in the World
rank by utility patentsForward Citations = 412
Company Filing History:
Headwaters Research and Development, Inc.
Other

4. 3 out of 3
The Handwerker Umbrella Company LLC
5. 2 out of 2
Zumio Inc.
where one patent can have more than one assignee
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