David Allen Smith

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Fenton, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Spark plug copper core alloy
- Patent number 6,677,698
- Issue date Jan 13, 2004
- Delphi Technologies, Inc.
- William J. Labarge
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Spark plug copper core alloy
- Publication number 20020074919
- Publication date Jun 20, 2002
- William J. Labarge
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
High efficiency, extended life spark plug having improved firing tips
- Publication number 20020074920
- Publication date Jun 20, 2002
- Randolph kwok-Kin Chiu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
High efficiency, extended life spark plug having improved firing tips
- Publication number 20020070645
- Publication date Jun 13, 2002
- Randolph kwok-Kin Chiu
- H01 - BASIC ELECTRIC ELEMENTS