Randolph Kwok-Kin Chiu

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Davidson, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
High efficiency, extended life spark plug having shaped firing tips
- Patent number 5,856,724
- Issue date Jan 5, 1999
- General Motors Corporation
- Randolph Kwok-Kin Chiu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Spark plug with platinum tip partially embedded in an electrode
- Patent number 5,558,575
- Issue date Sep 24, 1996
- General Motors Corporation
- Randolph K. Chiu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Spark plug with copper cored ground electrode and a process of weld...
- Patent number 5,530,313
- Issue date Jun 25, 1996
- General Motors Corporation
- Randolph K. Chiu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
High efficiency, extended life spark plug having shaped firing tips
- Patent number 5,527,198
- Issue date Jun 18, 1996
- General Motors Corporation
- Randolph K.-K. Chiu
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

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
Enhanced thermal expansion divider layers for a high efficiency, ex...
- Publication number 20020070646
- Publication date Jun 13, 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