33 Utility and 17 Design Patents
#3 in Spring Grove, IL
#1,337 in Illinois
#41,138 in US
#79,140 in the World
rank by utility patentsForward Citations = 1,109
Company Filing History:

Intermatic Incorporated
Colorado Seminary
4. 1 out of 17
Envirotest Systems Corporation
where one patent can have more than one assignee
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