8 Utility and 1 Design Patents
#617 in Minneapolis, MN
#8,121 in Minnesota
#252,117 in US
#514,770 in the World
rank by utility patentsForward Citations = 805
Company Filing History:



4. 1 out of 831,952 patents
Other
5. 1 out of 1,159

where one patent can have more than one assignee
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