8 Utility Patents
#1,806 in Nagoya
#106,576 in Japan
#514,027 in the World
Forward Citations = 172
Company Filing History:


Ngk Spark Plug., Ltd.
where one patent can have more than one assignee
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#1,806 in Nagoya
#106,576 in Japan
#514,027 in the World
Company Filing History:


Get your Inventor Badge Today