12 Utility and 2 Design Patents
#3 in Kiel, WI
#2,910 in Wisconsin
#161,797 in US
#326,522 in the World
rank by utility patentsForward Citations = 290
Company Filing History:

Pentair Filtration, Inc.
Plymouth Products, Inc.
4. 2 out of 2
Usf Consumer & Commercial Group, Inc.
5. 1 out of 4,114

where one patent can have more than one assignee
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