John Mortimer Rollett

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London, EN

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Patents Grantslast 30 patents

Information Patent Grant
Oscillator circuit arrangements including nullator-norator pairs
- Patent number 4,091,341
- Issue date May 23, 1978
- The Post Office
- Alan John Greaves
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Oscillator circuit arrangements including nullator-norator pairs
- Patent number 4,091,340
- Issue date May 23, 1978
- The Post Office
- Alan John Greaves
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Stable gyrator network for simularity inductance
- Patent number 4,074,215
- Issue date Feb 14, 1978
- Post Office
- John M. Rollett
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Active networks and signalling equipment
- Patent number 4,051,385
- Issue date Sep 27, 1977
- The Post Office
- Philip Ernest Greenaway
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Active amplitude equalizers
- Patent number 4,012,704
- Issue date Mar 15, 1977
- The Post Office
- John Mortimer Rollett
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Arrangements for simulating inductance and filter networks incorpor...
- Patent number 3,936,777
- Issue date Feb 3, 1976
- The Post Office
- John Mortimer Rollett
- H03 - BASIC ELECTRONIC CIRCUITRY