David W. Butcher

Person

Goostrey, GB

People

Patents Grantslast 30 patents

Information Patent Grant
Post-exposure dye treatment in the production of holograms
- Patent number 4,966,440
- Issue date Oct 30, 1990
- Ilford Limited
- David W. Butcher
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method of preparing a hologram
- Patent number 4,826,745
- Issue date May 2, 1989
- Ciba-Geigy AG
- Trevor Groves
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Multicolor holograms using gelatin as the binder and method for pro...
- Patent number 4,816,360
- Issue date Mar 28, 1989
- Ciba-Geigy AG
- James Doyle
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Processing holograms
- Patent number 4,788,115
- Issue date Nov 29, 1988
- Ciba-Geigy AG
- William E. Long
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method of preparing holograms and the holograms prepared thereby
- Patent number 4,769,301
- Issue date Sep 6, 1988
- Ciba-Geigy AG
- David W. Butcher
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
A method of preparing a hologram having an increased replay wavelen...
- Patent number 4,769,300
- Issue date Sep 6, 1988
- Ciba-Geigy AG
- David W. Butcher
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method of preparing a hologram
- Patent number 4,748,097
- Issue date May 31, 1988
- Ciba-Geigy AG
- John A. Clark
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method of preparing a hologram
- Patent number 4,720,441
- Issue date Jan 19, 1988
- Ciba-Geigy AG
- John A. Clark
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

David W. Butcher

Person

Patents Grantslast 30 patents

Post-exposure dye treatment in the production of holograms

Method of preparing a hologram

Multicolor holograms using gelatin as the binder and method for pro...

Processing holograms

Method of preparing holograms and the holograms prepared thereby

A method of preparing a hologram having an increased replay wavelen...

Method of preparing a hologram

Method of preparing a hologram