Roy Inge Davis

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Saline, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Method, apparatus and article for detecting rotor position
- Patent number 7,557,530
- Issue date Jul 7, 2009
- Continental Automotive Systems US, Inc.
- Tod R. Tesch
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Rotor assembly for a permanent magnet power electric machine
- Patent number 7,098,569
- Issue date Aug 29, 2006
- Ballard Power Systems Corporation
- Raymond Ong
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Method and apparatus for motor control
- Patent number 6,936,991
- Issue date Aug 30, 2005
- Ballard Power Systems Corporation
- Li Chen
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Observer for engine crankshaft torque
- Patent number 6,714,852
- Issue date Mar 30, 2004
- Ford Global Technologies, LLC
- Robert Donald Lorenz
- G05 - CONTROLLING REGULATING
Information Patent Grant
Apparatus and method for engine crankshaft torque ripple control in...
- Patent number 6,336,070
- Issue date Jan 1, 2002
- Ford Global Technologies, Inc.
- Robert Donald Lorenz
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Method and apparatus for selectively controlling the speed of an en...
- Patent number 6,192,847
- Issue date Feb 27, 2001
- Ford Global Technologies, Inc.
- Roy Inge Davis
- B60 - VEHICLES IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
Method, apparatus and article for detecting rotor position
- Publication number 20070080655
- Publication date Apr 12, 2007
- Tod R. Tesch
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Power system method and apparatus
- Publication number 20060152085
- Publication date Jul 13, 2006
- Fred Flett
- B60 - VEHICLES IN GENERAL
Information Patent Application
Rotor assembly for a permanent magnet power electric machine
- Publication number 20060043811
- Publication date Mar 2, 2006
- Raymond Ong
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Power converter architecture and method for integrated fuel cell ba...
- Publication number 20040217732
- Publication date Nov 4, 2004
- Ballard Power Systems Inc.
- Lizhi Zhu
- B60 - VEHICLES IN GENERAL
Information Patent Application
Method and apparatus for motor control
- Publication number 20040036434
- Publication date Feb 26, 2004
- Ballard Power Systems Corporation
- Li Chen
- B60 - VEHICLES IN GENERAL
Information Patent Application
Process for the optimization of the design of an electric power train
- Publication number 20040015255
- Publication date Jan 22, 2004
- Ballard Power Systems Corporation
- Roy I. Davis
- B61 - RAILWAYS