7 Utility Patents
#6,563 in Yokohama
#121,317 in Japan
#594,871 in the World
Forward Citations = 1
Company Filing History:

Osaka Gas Chemicals Co., Ltd.
where one patent can have more than one assignee
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#6,563 in Yokohama
#121,317 in Japan
#594,871 in the World
Company Filing History:

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