John A. Winterburn

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Tynemouth, GB

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Patents Grantslast 30 patents

Information Patent Grant
Method of enhancing fused quartz body purity
- Patent number 5,096,479
- Issue date Mar 17, 1992
- TSL Group PLC
- Joseph I. H. Allen
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Method of purifying vitreous silica
- Patent number 4,874,417
- Issue date Oct 17, 1989
- Thermal Syndicate P.L.C.
- John A. Winterburn
- C30 - CRYSTAL GROWTH
Information Patent Grant
Method of purifying molten silica
- Patent number 4,759,787
- Issue date Jul 26, 1988
- TSL Group PLC
- John A. Winterburn
- C30 - CRYSTAL GROWTH