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David W. Welch

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  • Columbus, MS, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Self cleaning trolling motor
    • Patent number 6,247,980
    • Issue date Jun 19, 2001
    • Brunswick Corporation
    • Prentice G. Moore
    • B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
  • Information Patent Grant

    Commutator brush
    • Patent number 5,594,290
    • Issue date Jan 14, 1997
    • United Technologies Motor Systems, Inc.
    • Larry S. Shannon
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Synchronizing windshield wipers
    • Patent number 5,568,026
    • Issue date Oct 22, 1996
    • United Technologies Motor Systems, Inc.
    • David W. Welch
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    General purpose motor controller
    • Patent number 5,486,747
    • Issue date Jan 23, 1996
    • United Technologies Motor Systems
    • David W. Welch
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Multi-speed motor
    • Patent number 5,485,049
    • Issue date Jan 16, 1996
    • United Technologies Motor Systems, Inc.
    • Larry S. Shannon
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Dual windshield wiper motor synchronization
    • Patent number 5,216,340
    • Issue date Jun 1, 1993
    • United Technologies Motor Systems
    • David W. Welch
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Brushless motor speed control
    • Patent number 4,720,663
    • Issue date Jan 19, 1988
    • United Technologies Electro Systems, Inc.
    • David W. Welch
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Electric shift actuator for vehicle transfer case
    • Patent number 4,664,217
    • Issue date May 12, 1987
    • United Technologies Electro Systems, Inc.
    • David W. Welch
    • B60 - VEHICLES IN GENERAL