Desmond R. Armstrong

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Wallington, GB

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Patents Grantslast 30 patents

Information Patent Grant
Temperature sensing circuit
- Patent number 5,039,878
- Issue date Aug 13, 1991
- U.S. Philips Corporation
- Desmond R. Armstrong
- G01 - MEASURING TESTING
Information Patent Grant
Amplifier circuit arrangement
- Patent number 4,920,321
- Issue date Apr 24, 1990
- U.S. Philips Corporation
- Desmond R. Armstrong
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Differential amplifier and current sensing circuit including such a...
- Patent number 4,885,477
- Issue date Dec 5, 1989
- U.S. Philips Corporation
- Philip H. Bird
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Motor speed control system
- Patent number 4,771,223
- Issue date Sep 13, 1988
- U.S. Philips Corporation
- Desmond R. Armstrong
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Motor speed control circuits
- Patent number 4,150,303
- Issue date Apr 17, 1979
- U.S. Philips Corporation
- Desmond R. Armstrong
- D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
Information Patent Grant
Tachogenerator processing circuits and motor speed control systems...
- Patent number 4,117,384
- Issue date Sep 26, 1978
- U.S. Philips Corporation
- Desmond R. Armstrong
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER