John K. Olby

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Wembley, GB

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Patents Grantslast 30 patents

Information Patent Grant
Method of preventing glaze defects
- Patent number 4,806,507
- Issue date Feb 21, 1989
- Cookson Group plc
- John K. Olby
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Ceramic pigment
- Patent number 4,486,236
- Issue date Dec 4, 1984
- HMR Group Limited
- John K. Olby
- C01 - INORGANIC CHEMISTRY