68 Utility and 1 Design Patents
#1 in Oconomowoc, WI
#112 in Wisconsin
#11,444 in US
#21,041 in the World
rank by utility patentsForward Citations = 750
Company Filing History:
Earth Tool Company, L.l.c.
Earth Tool Company LLC
The Charles Machine Works, Inc.
4. 7 out of 831,952 patents
Other
5. 7 out of 9
Earth Tool Corporation
where one patent can have more than one assignee
Get your Inventor Badge Today