Richard A. Campbell

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Concord, MA, US

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Patents Grantslast 30 patents

Information Patent Grant
Multifrequency microwave source
- Patent number 4,616,191
- Issue date Oct 7, 1986
- Raytheon Company
- Zvi Galani
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Radar transmitter
- Patent number 4,591,859
- Issue date May 27, 1986
- Raytheon Company
- Richard A. Campbell
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Control circuit for low noise frequency agile oscillator
- Patent number 4,481,484
- Issue date Nov 6, 1984
- Raytheon Company
- Richard A. Campbell
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Apparatus for detecting a stable microwave discrete frequency
- Patent number 4,048,580
- Issue date Sep 13, 1977
- The United States of America as represented by the Secretary of the Army
- Richard A. Campbell
- H03 - BASIC ELECTRONIC CIRCUITRY