15 Utility Patents
#469 in Ibaraki
#52,573 in Japan
#243,572 in the World
Forward Citations = 107
Company Filing History:

Toho Gas Co., Ltd.

where one patent can have more than one assignee
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#469 in Ibaraki
#52,573 in Japan
#243,572 in the World
Company Filing History:


Get your Inventor Badge Today