William R. Poyner

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Stourbridge, GB

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Patents Grantslast 30 patents

Information Patent Grant
Sulfur-containing amine compositions and agents for vulcanizing rubber
- Patent number 5,686,536
- Issue date Nov 11, 1997
- Robinson Brothers Limited
- William Raymond Poyner
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Photodegradable compositions
- Patent number 5,274,019
- Issue date Dec 28, 1993
- Robinson Brothers Limited
- William R. Poyner
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Stabilizing polymers and polymer films
- Patent number 4,731,949
- Issue date Mar 22, 1988
- Robinson Brothers Limited
- William R. Poyner
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...