Du Pont Howson Ltd.

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Stevenage, Hertfordshire SG1 4QN, US

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Patents Grantslast 30 patents

Information Patent Grant
Developer solution comprising ethyl hexyl sulphate, a surfactant, a...
- Patent number 5,278,030
- Issue date Jan 11, 1994
- Du Pont-Howson Limited
- Michael Ingham
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Radiation sensitive devices
- Patent number 5,162,193
- Issue date Nov 10, 1992
- Du Pont-Howson Limited
- David E. Murray
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Polymeric compounds having urethane and sulfonate groups
- Patent number 5,162,431
- Issue date Nov 10, 1992
- Du Pont-Howson Limited
- Rodney M. Potts
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

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Trademarklast 30 trademarks

Information Trademark
74165795 - THERMOTECT
- Serial number 74165795
- Registration number 1742583
- Filing date May 13, 1991
- Du Pont Howson Ltd.
- 1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry