16 Utility Patents
#2 in Marly
#3,271 in France
#227,485 in the World
Forward Citations = 13
Company Filing History:

Nippon Steel Corporation
Nippon Steel & Sumitomo Metal Corporation
4. 3 out of 929
Sumitomo Metal Industries, Inc.
5. 2 out of 61

where one patent can have more than one assignee
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