Richard E. Hartsfield, Jr.

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Chesterfield, MO, US

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Patents Grantslast 30 patents

Information Patent Grant
Electric power steering system including a permanent magnet motor
- Patent number 7,034,423
- Issue date Apr 25, 2006
- Alan D. Crapo
- B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information Patent Grant
Controlling electric motor cogging
- Patent number 7,009,319
- Issue date Mar 7, 2006
- Emerson Electric Co.
- Richard E. Hartsfield, Jr.
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Permanent magnet machine
- Patent number 6,946,766
- Issue date Sep 20, 2005
- Emerson Electric Co.
- Horst E. Gary
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Interconnecting method for segmented stator electric machines
- Patent number 6,941,638
- Issue date Sep 13, 2005
- Emerson Electric Co.
- Richard E. Hartsfield, Jr.
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Interconnecting ring and wire guide
- Patent number 6,856,055
- Issue date Feb 15, 2005
- Emerson Electric Co.
- Paul G. Michaels
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER