22 Utility and 4 Design Patents
#18 in Marblehead, MA
#3,932 in Massachusetts
#75,488 in US
#148,339 in the World
rank by utility patentsForward Citations = 595
Company Filing History:
Headwaters Research and Development, Inc.
Headwaters R+d Inc
Headwaters, Inc.
4. 3 out of 832,718 patents
Other
5. 1 out of 2
Headwater R&d Inc
where one patent can have more than one assignee
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