7 Utility Patents
#22,154 in Tokyo
#121,361 in Japan
#595,258 in the World
Forward Citations = 78
Company Filing History:
Other
Hitachi Plant Engineering & Construction Co., Ltd.

4. 1 out of 136
Hitachi Plant Technologies, Ltd.
5. 1 out of 3
Japan Sewage Works Agency
where one patent can have more than one assignee
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