36 Utility Patents
#240 in Nagoya
#14,564 in Japan
#68,882 in the World
Forward Citations = 434
Company Filing History:


Ngk Spark Plug Cp. Ltd.
where one patent can have more than one assignee
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#240 in Nagoya
#14,564 in Japan
#68,882 in the World
Company Filing History:


Get your Inventor Badge Today