4 Utility and 2 Design Patents
#975 in St. Louis, MO
#4,458 in Missouri
#477,315 in US
rank by utility patentsForward Citations = 53
Company Filing History:

where one patent can have more than one assignee
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#975 in St. Louis, MO
#4,458 in Missouri
#477,315 in US
rank by utility patentsCompany Filing History:

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