33 Utility and 2 Design Patents
#1 in Sanford, NC
#869 in North Carolina
#41,092 in US
#79,025 in the World
rank by utility patentsForward Citations = 791
Company Filing History:



4. 3 out of 41
Essef Corporation
5. 2 out of 9
Danfoss Low Power Drives
where one patent can have more than one assignee
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