20 Utility and 22 Design Patents
#77 in Chicago, US
#308 in
#4,441 in US
#7,612 in the World
rank by design patentsForward Citations = 440
Company Filing History:

R B Toy Development Co.

Rub-a-venture

Rb Products Corporation
4. 1 out of 2
Rb Toy Development
where one patent can have more than one assignee
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