7 Utility Patents
#22,243 in Tokyo
#121,602 in Japan
#597,011 in the World
Forward Citations = 70
Company Filing History:
Nippon Steel Corporation
Nippon Steel & Sumitomo Metal Corporation
Other
4. 1 out of 18
Nippon Steel Welding Products and Engineering Co., Ltd.
where one patent can have more than one assignee
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