David Stewart

Person

Royton, GB

People

Patents Grantslast 30 patents

Information Patent Grant
Substituted triazoles
- Patent number 5,254,695
- Issue date Oct 19, 1993
- Imperial Chemical Industries PLC
- Peter M. Quan
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Composition and use
- Patent number 5,215,581
- Issue date Jun 1, 1993
- Imperial Chemical Industries PLC
- David Stewart
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for the extraction of metal values
- Patent number 4,923,686
- Issue date May 8, 1990
- Imperial Chemical Industries
- Raymond F. Dalton
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Extraction of metal values
- Patent number 4,879,388
- Issue date Nov 7, 1989
- Imperial Chemical Industries, PLC
- Peter M. Quan
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the extraction of metal values and novel metal extractants
- Patent number 4,822,880
- Issue date Apr 18, 1989
- Imperial Chemical Industries PLC
- David P. Devonald
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Metal extractants
- Patent number 4,775,763
- Issue date Oct 4, 1988
- Imperial Chemical Industries
- Raymond F. Dalton
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the extraction of metal values with bisimidazole metal...
- Patent number 4,696,801
- Issue date Sep 29, 1987
- Imperial Chemical Industries PLC
- David P. Devonald
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Pyridine dicarboxylic ester metal extractants
- Patent number 4,683,310
- Issue date Jul 28, 1987
- Imperial Chemical Industries, PLC
- Raymond F. Dalton
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the extraction of metal values and novel metal extractants
- Patent number 4,581,220
- Issue date Apr 8, 1986
- Imperial Chemical Industries, PLC
- Anthony J. Nelson
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the extraction of metal values and novel metal extractants
- Patent number 4,525,330
- Issue date Jun 25, 1985
- Imperial Chemical Industries Limited
- Raymond F. Dalton
- C07 - ORGANIC CHEMISTRY

David Stewart

Person

Patents Grantslast 30 patents

Substituted triazoles

Composition and use

Process for the extraction of metal values

Extraction of metal values

Process for the extraction of metal values and novel metal extractants

Metal extractants

Process for the extraction of metal values with bisimidazole metal...

Pyridine dicarboxylic ester metal extractants

Process for the extraction of metal values and novel metal extractants

Process for the extraction of metal values and novel metal extractants