DONALD G. MADDOCK

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YPSILANTI, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Differential lubricant temperature controller
- Patent number 8,528,697
- Issue date Sep 10, 2013
- GM Global Technology Operations LLC
- Gregory Mordukhovich
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Variable K-factor torque converter
- Patent number 7,785,229
- Issue date Aug 31, 2010
- GM Global Technology Operations, Inc.
- Donald G. Maddock
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
High efficiency torque converter
- Patent number 7,152,399
- Issue date Dec 26, 2006
- GM Global Technology Operations, Inc.
- Jean M. Schweitzer
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Molded torque converter stator and integral race for a one-way torq...
- Patent number 5,431,536
- Issue date Jul 11, 1995
- General Motors Corporation
- Robert R. By
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Torque converter
- Patent number 4,180,978
- Issue date Jan 1, 1980
- General Motors Corporation
- Don G. Maddock
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
DIFFERENTIAL LUBRICANT TEMPERATURE CONTROLLER
- Publication number 20100038174
- Publication date Feb 18, 2010
- GM Global Technology Operations, Inc.
- Gregory Mordukhovich
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
VARIABLE K-FACTOR TORQUE CONVERTER
- Publication number 20080194381
- Publication date Aug 14, 2008
- GM Global Technology Operations, Inc.
- DONALD G. MADDOCK
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
High efficiency torque converter
- Publication number 20050268603
- Publication date Dec 8, 2005
- Jean M. Schweitzer
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES