Dennis L. Manthei

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West Salem, WI, US

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Patents Grantslast 30 patents

Information Patent Grant
Automatic calibrating electrically controlled diaphragm valve actua...
- Patent number 5,711,507
- Issue date Jan 27, 1998
- Gas Research Institute
- Mark D. Berget
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Automatic calibrating electrically controlled diaphragm valve actua...
- Patent number 5,518,015
- Issue date May 21, 1996
- Gas Research Institute
- Mark D. Berget
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Electric air valve
- Patent number 4,775,133
- Issue date Oct 4, 1988
- American Standard Inc.
- H. Kenneth Ring
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Normally closed pneumatic air valve
- Patent number 4,749,001
- Issue date Jun 7, 1988
- American Standard Inc.
- H. Kenneth Ring
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Normally open pneumatic air valve
- Patent number 4,749,000
- Issue date Jun 7, 1988
- American Standard Inc.
- H. Kenneth Ring
- F24 - HEATING RANGES VENTILATING