4 Utility Patents
#33,921 in Tokyo
#193,377 in Japan
Forward Citations = 40
Company Filing History:
Toa Grout Kogyo Co., Ltd.


4. 2 out of 3
Toa Grout Kogyo Kabushiki Kaisha
5. 2 out of 2
Tonan Kaihatsu Kogyo Co., Ltd.
where one patent can have more than one assignee
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