Richard Stevens

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Copthorne, EN

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Patents Grantslast 30 patents

Information Patent Grant
Acoustic surface wave devices
- Patent number 4,023,124
- Issue date May 10, 1977
- U.S. Philips Corporation
- David William Parker
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Diced substrate S.A.W. device for bulk wave attenuation
- Patent number 4,012,650
- Issue date Mar 15, 1977
- U.S. Philips Corporation
- Ronald George Pratt
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Acoustic surface wave devices
- Patent number 3,983,515
- Issue date Sep 28, 1976
- U.S. Philips Corporation
- Richard Frank Mitchell
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Acoustic surface-wave devices using mono crystalline bismuth silico...
- Patent number 3,956,647
- Issue date May 11, 1976
- U.S. Philips Corporation
- Richard Frank Mitchell
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Acoustic surface wave devices
- Patent number 3,955,159
- Issue date May 4, 1976
- U.S. Philips Corporation
- Richard Frank Mitchell
- H03 - BASIC ELECTRONIC CIRCUITRY