Douglas E. Keiter

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Athens, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
Electronic controller matching engine power to alternator power and...
- Patent number 7,633,173
- Issue date Dec 15, 2009
- Sunpower, Inc.
- Douglas E. Keiter
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Electronic controller matching engine power to alternator power and...
- Patent number 7,453,241
- Issue date Nov 18, 2008
- Sunpower, Inc.
- Douglas E. Keiter
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Temperature control for free-piston cryocooler with gas bearings
- Patent number 7,266,947
- Issue date Sep 11, 2007
- Sunpower, Inc.
- Douglas E. Keiter
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Control system and method for preventing destructive collisions in...
- Patent number 6,536,326
- Issue date Mar 25, 2003
- Sunpower, Inc.
- Reuven Z. Unger
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information Patent Grant
DC centering of free piston machine
- Patent number 6,199,381
- Issue date Mar 13, 2001
- Sunpower, Inc.
- Reuven Z-M Unger
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...

Patents Applicationslast 30 patents

Information Patent Application
Electronic Controller Matching Engine Power To Alternator Power And...
- Publication number 20080309095
- Publication date Dec 18, 2008
- Sunpower, Inc.,
- Douglas E. Keiter
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
Electronic controller matching engine power to alternator power and...
- Publication number 20080122408
- Publication date May 29, 2008
- Sunpower, Inc.
- Douglas E. Keiter
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
Vibration control of free piston machines through frequency adjustment
- Publication number 20070256428
- Publication date Nov 8, 2007
- Sunpower, Inc.
- Reuven Z-M Unger
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information Patent Application
Temperature control for free-piston cryocooler with gas bearings
- Publication number 20050229608
- Publication date Oct 20, 2005
- Douglas E. Keiter
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information Patent Application
CONTROL SYSTEM AND METHOD FOR PREVENTING DESTRUCTIVE COLLISIONS IN...
- Publication number 20020189433
- Publication date Dec 19, 2002
- Reuven Z. Unger
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...