75 Utility Patents
#4 in Brookfield, WI
#85 in Wisconsin
#9,435 in US
#17,268 in the World
Forward Citations = 885
Company Filing History:
Earth Tool Company, L.l.c.
Earth Tool Company LLC
The Charles Machine Works, Inc.
4. 9 out of 9
Earth Tool Corporation
5. 6 out of 831,952 patents
Other
where one patent can have more than one assignee
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