Christopher R. Brown

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Chippenham, GB

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Patents Grantslast 30 patents

Information Patent Grant
Proving safe operation
- Patent number 4,800,507
- Issue date Jan 24, 1989
- Christopher R. Brown
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Track circuit
- Patent number 4,641,803
- Issue date Feb 10, 1987
- Westinghouse Brake and Signal Company Limited
- Christopher R. Brown
- B61 - RAILWAYS
Information Patent Grant
Arrangement for testing the operability of a semiconductive device
- Patent number 4,554,507
- Issue date Nov 19, 1985
- Westinghouse Brake & Signal Co., Ltd.
- Christopher R. Brown
- G01 - MEASURING TESTING
Information Patent Grant
Computer-based interlocking system
- Patent number 4,517,673
- Issue date May 14, 1985
- Westinghouse Brake & Signal Co.
- Christopher R. Brown
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Railway control signal dynamic output interlocking systems
- Patent number 4,305,556
- Issue date Dec 15, 1981
- Westinghouse Brake & Signal Co. Ltd.
- David J. Norton
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Railway control signal interlocking systems
- Patent number 4,270,715
- Issue date Jun 2, 1981
- Westinghouse Brake & Signal Co.
- David J. Norton
- G06 - COMPUTING CALCULATING COUNTING