11 Utility and 10 Design Patents
#11 in Kentwood, MI
#7,169 in Michigan
#178,131 in US
#360,153 in the World
rank by utility patentsForward Citations = 495
Company Filing History:

R. T. London Company

4. 2 out of 831,952 patents
Other
5. 2 out of 16
Ring King Visibles, Inc.
where one patent can have more than one assignee
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