John Andrew Johnston

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Highfield Caldecote, GB

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Patents Grantslast 30 patents

Information Patent Grant
Gas discriminating semiconductor sensors
- Patent number 9,618,491
- Issue date Apr 11, 2017
- Atmospheric Sensors Ltd.
- Mike Kellaway
- G01 - MEASURING TESTING
Information Patent Grant
Gas discriminating semiconductor sensors
- Patent number 8,972,204
- Issue date Mar 3, 2015
- Atmospheric Sensors Ltd.
- Mike Kellaway
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
Gas Discriminating Semiconductor Sensors
- Publication number 20140336952
- Publication date Nov 13, 2014
- Mike Kellaway
- G01 - MEASURING TESTING