James D. Birch

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Townsend, MA, US

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Patents Grantslast 30 patents

Information Patent Grant
Compact antenna with folded substrate
- Patent number 5,675,345
- Issue date Oct 7, 1997
- Raytheon Company
- Jerome H. Pozgay
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Compensated phased array antenna
- Patent number 4,308,539
- Issue date Dec 29, 1981
- Raytheon Company
- James D. Birch
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Ferrite phase shifter having conductive material plated around ferr...
- Patent number 4,001,733
- Issue date Jan 4, 1977
- Raytheon Company
- James D. Birch
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Antenna element for circular or linear polarization
- Patent number 3,938,158
- Issue date Feb 10, 1976
- Raytheon Company
- James D. Birch
- H01 - BASIC ELECTRIC ELEMENTS