John Howard Bigelow

Person

Rochester, NY, US

People

Patents Grantslast 30 patents

Information Patent Grant
Silver halide emulsion containing tetrathiocino diisothiazoles as a...
- Patent number 4,210,716
- Issue date Jul 1, 1980
- E. I. Du Pont de Nemours and Company
- John H. Bigelow
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
4,7-Dihydroxybenzimidazole hydrobromide as antifogger
- Patent number 4,131,467
- Issue date Dec 26, 1978
- E. I. Du Pont de Nemours and Company
- John H. Bigelow
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Sulfur-substituted isothioureas in silver halide emulsions
- Patent number 4,116,697
- Issue date Sep 26, 1978
- E. I. Du Pont de Nemours and Company
- John Howard Bigelow
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Organophosphine sulfides as photographic sensitizers
- Patent number 4,115,129
- Issue date Sep 19, 1978
- E. I. Du Pont de Nemours and Company
- John Howard Bigelow
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Organophosphine chelates of platinum and palladium as sensitizers
- Patent number 4,092,171
- Issue date May 30, 1978
- E. I. Du Pont de Nemours and Company
- John Howard Bigelow
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Trithiocarbonates as sensitizers for silver halide emulsions
- Patent number 4,067,740
- Issue date Jan 10, 1978
- E. I. Du Pont de Nemours and Company
- John Howard Bigelow
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Silver halide emulsions containing hexathiocane thiones as sensitizers
- Patent number 4,054,457
- Issue date Oct 18, 1977
- E. I. Du Pont de Nemours & Co.
- John Howard Bigelow
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Organic heterocyclic and thioaryl phosphines in silver halide emuls...
- Patent number 4,003,746
- Issue date Jan 18, 1977
- E. I. Du Pont de Nemours and Company
- John Howard Bigelow
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photographic element with contiguous layer containing an oxidizing...
- Patent number 3,977,879
- Issue date Aug 31, 1976
- E. I. Du Pont de Nemours and Company
- John Howard Bigelow
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
1,4,7,10-Tetraazatetracyclo[5.5.1.0.sup.4,13.0.sup.10,13 ]tridecane...
- Patent number 3,932,451
- Issue date Jan 13, 1976
- E. I. Du Pont de Nemours and Company
- John Howard Bigelow
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Macrocyclic polyamines as sensitizers for silver halide emulsions
- Patent number 3,930,867
- Issue date Jan 6, 1976
- E. I. Du Pont de Nemours and Company
- John H. Bigelow
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

John Howard Bigelow

Person

Patents Grantslast 30 patents

Silver halide emulsion containing tetrathiocino diisothiazoles as a...

4,7-Dihydroxybenzimidazole hydrobromide as antifogger

Sulfur-substituted isothioureas in silver halide emulsions

Organophosphine sulfides as photographic sensitizers

Organophosphine chelates of platinum and palladium as sensitizers

Trithiocarbonates as sensitizers for silver halide emulsions

Silver halide emulsions containing hexathiocane thiones as sensitizers

Organic heterocyclic and thioaryl phosphines in silver halide emuls...

Photographic element with contiguous layer containing an oxidizing...

1,4,7,10-Tetraazatetracyclo[5.5.1.0.sup.4,13.0.sup.10,13 ]tridecane...

Macrocyclic polyamines as sensitizers for silver halide emulsions