Keith H. Stephen

Person

Rochester, NY, US

People

Patents Grantslast 30 patents

Information Patent Grant
Photographic processing solution containing ternary ferric-complex...
- Patent number 5,670,305
- Issue date Sep 23, 1997
- Eastman Kodak Company
- Stuart Terrance Gordon
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photographic peracid bleaches with ferric 2-pyridinecarboxylate and...
- Patent number 5,536,625
- Issue date Jul 16, 1996
- Eastman Kodak Company
- John M. Buchanan
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photographic peracid bleaches with ferric 2-pyridinecarboxylate and...
- Patent number 5,460,924
- Issue date Oct 24, 1995
- Eastman Kodak Company
- John M. Buchanan
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixer additives used in combination with iron complex based bleache...
- Patent number 5,434,035
- Issue date Jul 18, 1995
- Eastman Kodak Company
- Mary E. Craver
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photographic bleach compositions and methods of photographic proces...
- Patent number 5,334,491
- Issue date Aug 2, 1994
- Eastman Kodak Company
- David G. Foster
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photographic bleaching solution and use thereof in photographic col...
- Patent number 5,061,608
- Issue date Oct 29, 1991
- Eastman Kodak Company
- David G. Foster
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photographic bleaching and bleach-fixing solutions
- Patent number 4,933,266
- Issue date Jun 12, 1990
- Eastman Kodak Company
- Keith H. Stephen
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Bleach-fix sheets
- Patent number 4,256,826
- Issue date Mar 17, 1981
- Eastman Kodak Company
- Gerhard Popp
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Keith H. Stephen

Person

Patents Grantslast 30 patents

Photographic processing solution containing ternary ferric-complex...

Photographic peracid bleaches with ferric 2-pyridinecarboxylate and...

Photographic peracid bleaches with ferric 2-pyridinecarboxylate and...

Fixer additives used in combination with iron complex based bleache...

Photographic bleach compositions and methods of photographic proces...

Photographic bleaching solution and use thereof in photographic col...

Photographic bleaching and bleach-fixing solutions

Bleach-fix sheets