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Toledo, OH, United States of America

Champion Spark Plug

USPTO Granted Patents = 1

Forward Citations = 11

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1 inventor (with patents filed for the assignee):

William R Manning (1 out of 5 patents)

1 patent: Sort by Forward Citations

1. 4879260 - Alumina-zirconia ceramic (1989-11-07),

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USPTO Data Jan 1 1976 - Dec 16 2025

1 Patents

#145 in Toledo, OH

#5,177 in Ohio

#133,785 in US

Toledo, OH, United States of America

Champion Spark Plug

Forward Citations = 11

1 inventor:

William R Manning (1 out of 5 patents)

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