7 Utility and 4 Design Patents
#22,263 in Tokyo
#121,668 in Japan
#597,499 in the World
rank by utility patentsForward Citations = 505
Company Filing History:

Bunker Ramo Corporation

4. 1 out of 8,193

5. 1 out of 127
Teijin Chemicals Limited
where one patent can have more than one assignee
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