38 Utility Patents
#2,694 in Tokyo
#12,497 in Japan
#58,041 in the World
Forward Citations = 151
Company Filing History:
Hitachi Plant Technologies, Ltd.
Hitachi Plant Engineering & Construction Co., Ltd.
Other
4. 1 out of 112
5. 1 out of 3
Japan Sewage Works Agency
where one patent can have more than one assignee
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