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Paul D. Free
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Columbus, IN, US
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last 30 patents
Information
Patent Grant
Rotary engine
Patent number
6,289,867
Issue date
Sep 18, 2001
Cummins Engine Company, Inc.
Paul Douglas Free
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Coated compressor diffuser
Patent number
6,220,234
Issue date
Apr 24, 2001
Cummins Engine Company
Glenn L. Baker
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Electronic turbocharger wastegate controller
Patent number
5,755,101
Issue date
May 26, 1998
Cummins Engine Company, Inc.
Paul Douglas Free
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Double pulsing electronic unit injector solenoid valve to fill timi...
Patent number
5,558,067
Issue date
Sep 24, 1996
Cummins Engine Company, Inc.
Norman C. Blizard
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Viscosity sensitive auxiliary circuit for hydromechanical control v...
Patent number
5,411,003
Issue date
May 2, 1995
Cummins Engine Company, Inc.
Walter W. Eberhard
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Solenoid operated unit fuel injector with supply line backflow pres...
Patent number
5,390,851
Issue date
Feb 21, 1995
Cummins Engine Company, Inc.
Martin W. Long
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Viscosity responsive pressure regulator and timing control tappet s...
Patent number
5,024,200
Issue date
Jun 18, 1991
Cummins Engine Company, Inc.
Paul D. Free
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS