70 Utility Patents
#18 in Itami
#3,701 in Japan
#19,845 in the World
Forward Citations = 351
Company Filing History:

Sumitomo Electric Hardmetal Corp.

where one patent can have more than one assignee
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#18 in Itami
#3,701 in Japan
#19,845 in the World
Company Filing History:


Get your Inventor Badge Today