4 Utility and 3 Design Patents
#45 in Winnetka, IL
#19,219 in Illinois
#481,669 in US
rank by utility patentsForward Citations = 76
Company Filing History:

where one patent can have more than one assignee
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#45 in Winnetka, IL
#19,219 in Illinois
#481,669 in US
rank by utility patentsCompany Filing History:

Get your Inventor Badge Today