Inventor · disambiguated record

John W. Spirk

Also filed as: SPIRK JOHN · SPIRK JOHN W · SPIRK JOHN W JR · SPIRK JOHN WILFORD

222 granted patents·54 pending applications·6,417 citations·filing 19772018

99Inventor score
Technology areasB65DA61CY10TA46BB67D
Files withNOTTINGHAM JOHN R27PROCTER & GAMBLE20SHERWIN WILLIAMS CO14MAG NIF INC13NOTTINGHAM SPIRK DESIGN ASS13

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John W. Spirk — Patent Inventor | PatentIndex