David Lloyd Hart

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Ann Arbor, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for detecting coolant corrosiveness
- Patent number 6,536,264
- Issue date Mar 25, 2003
- Detroit Diesel Corporation
- Stephen K. Flammersfeld
- G01 - MEASURING TESTING
Information Patent Grant
Clear historic data from a vehicle data recorder
- Patent number 6,349,250
- Issue date Feb 19, 2002
- Detroit Diesel Corporation
- David Lloyd Hart
- G07 - CHECKING-DEVICES