63 Utility and 8 Design Patents
#19 in Minneapolis, MN
#492 in Minnesota
#13,150 in US
#24,358 in the World
rank by utility patentsForward Citations = 1,624
Company Filing History:


Advanced Filtration Systems, Inc.
4. 1 out of 831,952 patents
Other
5. 1 out of 14
Catepillar Inc.
where one patent can have more than one assignee
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