David L. Lehman

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Metamora, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Premixed fuel and gas method and apparatus for a compression igniti...
- Patent number 6,883,468
- Issue date Apr 26, 2005
- Caterpillar Inc.
- David L Lehman
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Method and a system for removing particulates and toxic substances...
- Patent number 6,625,977
- Issue date Sep 30, 2003
- Caterpillar Inc.
- David L. Lehman
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Method and apparatus to control a turbocharger wastegate using exha...
- Patent number 6,564,554
- Issue date May 20, 2003
- Caterpillar Inc.
- Robert L. Hercey
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Flywheel energy storage system for maintaining fan speed for coolin...
- Patent number 6,474,274
- Issue date Nov 5, 2002
- Caterpillar Inc.
- David L. Lehman
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Radiator arrangement with offset modular cores
- Patent number 5,927,390
- Issue date Jul 27, 1999
- Caterpillar Inc.
- David L. Lehman
- B60 - VEHICLES IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
Premixed fuel and gas method and apparatus for a compression igniti...
- Publication number 20040187804
- Publication date Sep 30, 2004
- David L. Lehman
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
Method and apparatus to control a turbocharger wastegate using exha...
- Publication number 20030029168
- Publication date Feb 13, 2003
- Robert L. Hercey
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Flywheel energy storage system for maintaining fan speed for coolin...
- Publication number 20020073941
- Publication date Jun 20, 2002
- David L. Lehman
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES