Ronald D. Ingraham

Person

Reed City, MI, US

People

Patents Grantslast 30 patents

Information Patent Grant
Fifth wheel hitch coupling control system
- Patent number 5,861,802
- Issue date Jan 19, 1999
- Holland Hitch Company
- Gerald W. Hungerink
- B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information Patent Grant
Magnetic field energy responsive position sensing apparatus and method
- Patent number 5,789,915
- Issue date Aug 4, 1998
- Nartron Corporation
- Ronald D. Ingraham
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Glow plug controller
- Patent number 5,570,666
- Issue date Nov 5, 1996
- Nartron Corporation
- Michael J. Rymut
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Fluid power assist method and apparatus
- Patent number 5,477,675
- Issue date Dec 26, 1995
- Nartron Corporation
- Ronald D. Ingraham
- B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
Information Patent Grant
Vehicle starter and electrical system protection
- Patent number 5,413,072
- Issue date May 9, 1995
- Nartron Corporation
- Christian J. Andersen
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Vehicle starter and electrical system protection
- Patent number 5,287,831
- Issue date Feb 22, 1994
- Nartron Corporation
- Christian J. Andersen
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Linear-output, temperature-stable rotational sensor including magne...
- Patent number 5,270,645
- Issue date Dec 14, 1993
- Nartron Corporation
- Mark Wheeler
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Motor vehicle heated seat control
- Patent number 5,229,579
- Issue date Jul 20, 1993
- Nartron Corporation
- Ronald D. Ingraham
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Pressure sensitive signal device for vehicle brake pedal
- Patent number 5,217,280
- Issue date Jun 8, 1993
- Nartron Corporation
- Todd M. Nykerk
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Combination vehicular braking and accessory control system
- Patent number 5,137,338
- Issue date Aug 11, 1992
- Nartron Corporation
- Ronald D. Ingraham
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Capacity responsive keyboard
- Patent number 5,087,825
- Issue date Feb 11, 1992
- Nartron Corporation
- Ronald D. Ingraham
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Combination vehicular braking and accessory control system
- Patent number 5,010,972
- Issue date Apr 30, 1991
- Nartron Corporation
- Ronald D. Ingraham
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Signal mechanism responsive to force applied to vehicular brake ped...
- Patent number 4,978,177
- Issue date Dec 18, 1990
- Nartron Corporation
- Ronald D. Ingraham
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Capacity responsive control circuit
- Patent number 4,831,279
- Issue date May 16, 1989
- Nartron Corporation
- Ronald D. Ingraham
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
DC touch control switch circuit
- Patent number 4,758,735
- Issue date Jul 19, 1988
- Nartron Corporation
- Ronald D. Ingraham
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Touch control switch circuit
- Patent number 4,731,548
- Issue date Mar 15, 1988
- Nartron Corporation
- Ronald D. Ingraham
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Antenna relay method and apparatus
- Patent number 4,672,278
- Issue date Jun 9, 1987
- Nartron Corporation
- Ronald D. Ingraham
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Ronald D. Ingraham

Person

Patents Grantslast 30 patents

Fifth wheel hitch coupling control system

Magnetic field energy responsive position sensing apparatus and method

Glow plug controller

Fluid power assist method and apparatus

Vehicle starter and electrical system protection

Vehicle starter and electrical system protection

Linear-output, temperature-stable rotational sensor including magne...

Motor vehicle heated seat control

Pressure sensitive signal device for vehicle brake pedal

Combination vehicular braking and accessory control system

Capacity responsive keyboard

Combination vehicular braking and accessory control system

Signal mechanism responsive to force applied to vehicular brake ped...

Capacity responsive control circuit

DC touch control switch circuit

Touch control switch circuit

Antenna relay method and apparatus