Robert Howard Griffioen

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Sturgis, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Pilot assembly
- Patent number 6,293,784
- Issue date Sep 25, 2001
- Robert Howard Griffioen
- F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
Information Patent Grant
Dual orifice pilot assembly
- Patent number 6,162,048
- Issue date Dec 19, 2000
- Griffioen; Robert Howard
- Robert Howard Griffioen
- F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
Information Patent Grant
Pilot assembly
- Patent number 6,027,335
- Issue date Feb 22, 2000
- Robert Howard Griffioen
- F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES