Desmond Lewis Murphy

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Beaverton, OR, US

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Patents Grantslast 30 patents

Information Patent Grant
Film resistors
- Patent number 4,563,564
- Issue date Jan 7, 1986
- Tektronix, Inc.
- Bret Ericsen
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Oscilloscope signal input circuit including an attenuator
- Patent number 4,525,688
- Issue date Jun 25, 1985
- Tektronix, Inc.
- Desmond L. Murphy
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Termination for high impedance attenuator
- Patent number 4,495,458
- Issue date Jan 22, 1985
- Tektronix
- Desmond L. Murphy
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Hybrid cascade attenuator
- Patent number 4,181,903
- Issue date Jan 1, 1980
- Tektronix, Inc.
- Kenneth C. Holland
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Programmable attenuator apparatus employing active FET switching
- Patent number 4,121,183
- Issue date Oct 17, 1978
- Tektronix, Inc.
- Desmond Lewis Murphy
- H03 - BASIC ELECTRONIC CIRCUITRY