Hans Langen

Person

Solingen, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Color photographic silver halide material
- Patent number 6,451,520
- Issue date Sep 17, 2002
- Agfa-Gevaert
- Heinrich Odenwälder
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Acetanilide couplers
- Patent number 6,297,385
- Issue date Oct 2, 2001
- Agfa-Gevaert
- Uwe Dahlhaus
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Color photographic recording material
- Patent number 6,228,568
- Issue date May 8, 2001
- Agfa-Gevaert
- Thomas Stetzer
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Color photographic recording material
- Patent number 6,057,085
- Issue date May 2, 2000
- AGFA-GEVAERT N.V.
- Klaus Sinzger
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Color photographic recording material having a 2-equivalent magenta...
- Patent number 6,013,428
- Issue date Jan 11, 2000
- AGFA-Gevaert A.G.
- Hans Langen
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Color photographic silver halide material
- Patent number 5,981,160
- Issue date Nov 9, 1999
- AGFA-Gevaert AG
- Heinrich Odenwalder
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Color photographic recording material having a yellow filter layer...
- Patent number 5,776,667
- Issue date Jul 7, 1998
- Agfa AG
- Hans Ohlschlager
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Color photographic silver halide material
- Patent number 5,702,877
- Issue date Dec 30, 1997
- AGFA-Gevaert AG
- Heinrich Odenwalder
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Color photographic silver halide material
- Patent number 5,601,968
- Issue date Feb 11, 1997
- AGFA-Gevaert Aktiengesellschaft
- Beate Weber
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Bleaching bath
- Patent number 5,266,449
- Issue date Nov 30, 1993
- Agfa Gevaert AG
- Christa Dacke
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Azo dye salts useful as masking couplers and preparation thereof
- Patent number 5,241,058
- Issue date Aug 31, 1993
- Agfa-Gevaert Aktiengesellschaft
- Gunter Renner
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Color photographic recording material
- Patent number 5,108,883
- Issue date Apr 28, 1992
- Agfa-Gevaert Aktiengesellschaft
- Reinhart Matejec
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Color photographic recording material containing new colored cyan c...
- Patent number 5,075,207
- Issue date Dec 24, 1991
- Agfa-Gevaert Aktiengesellschaft
- Hans Langen
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Color photographic negative recording material
- Patent number 4,963,465
- Issue date Oct 16, 1990
- Agfa-Gevaert Aktiengesellschaft
- Reinhart Matejec
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Light sensitive, stabilized photographic recording material
- Patent number 4,943,519
- Issue date Jul 24, 1990
- Agfa-Gevaert Aktiengesellschaft
- Gunter Helling
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Photographic recording material
- Patent number 4,939,079
- Issue date Jul 3, 1990
- Agfa/Gevaert Aktiengessellschaft
- Erich Wolff
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Polymeric couplers and light-sensitive photographic silver halide r...
- Patent number 4,756,998
- Issue date Jul 12, 1988
- Agfa-Gevaert Aktiengesellschaft
- Gunter Helling
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photographic recording element containing a UV absorbent and a silv...
- Patent number 4,749,643
- Issue date Jun 7, 1988
- Agfa-Gevaert Aktiengesellschaft
- Hans Ohlschlager
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Photosensitive photographic silver halide recording material
- Patent number 4,738,919
- Issue date Apr 19, 1988
- Agfa-Gevaert Aktiengesellschaft
- Gerd Krauss
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photographic recording material and a process for the production of...
- Patent number 4,710,454
- Issue date Dec 1, 1987
- Hans Langen
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Color coupler-containing photographic material
- Patent number 4,617,255
- Issue date Oct 14, 1986
- Agfa-Gevaert Aktiengesellschaft
- Erich Wolff
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Color-photographic recording material
- Patent number 4,576,907
- Issue date Mar 18, 1986
- Agfa-Gevaert Aktiengesellschaft
- Helmut Kampfer
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Solid preparation of water-soluble acid dye and polymer particles w...
- Patent number 4,459,130
- Issue date Jul 10, 1984
- Agfa-Gevaert Aktiengesellschaft
- Gunter Helling
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Light-sensitive photographic silver halide recording material
- Patent number 4,418,142
- Issue date Nov 29, 1983
- Agfa-Gevaert Aktiengesellschaft
- Hans Langen
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photographic recording material containing an aldehyde remover
- Patent number 4,414,309
- Issue date Nov 8, 1983
- Agfa-Gavaert Aktiengesellschaft
- Hans Langen
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Color photographic recording material containing an emulsified, hyd...
- Patent number 4,368,259
- Issue date Jan 11, 1983
- Agfa-Gevaert Aktiengesellschaft
- Fritz Nittel
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photographic recording material and new merocyanines
- Patent number 4,366,221
- Issue date Dec 28, 1982
- Agfa-Gevaert Aktiengesellschaft
- Hans Ohlschlager
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Light-sensitive material containing emulsified substances
- Patent number 4,106,940
- Issue date Aug 15, 1978
- AGFA-Gevaert, A.G.
- Hans Langen
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
Colour photographic silver halide material
- Publication number 20020045138
- Publication date Apr 18, 2002
- Heinrich Odenwalder
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Hans Langen

Person

Patents Grantslast 30 patents

Color photographic silver halide material

Acetanilide couplers

Color photographic recording material

Color photographic recording material

Color photographic recording material having a 2-equivalent magenta...

Color photographic silver halide material

Color photographic recording material having a yellow filter layer...

Color photographic silver halide material

Color photographic silver halide material

Bleaching bath

Azo dye salts useful as masking couplers and preparation thereof

Color photographic recording material

Color photographic recording material containing new colored cyan c...

Color photographic negative recording material

Light sensitive, stabilized photographic recording material

Photographic recording material

Polymeric couplers and light-sensitive photographic silver halide r...

Photographic recording element containing a UV absorbent and a silv...

Photosensitive photographic silver halide recording material

Photographic recording material and a process for the production of...

Color coupler-containing photographic material

Color-photographic recording material

Solid preparation of water-soluble acid dye and polymer particles w...

Light-sensitive photographic silver halide recording material

Photographic recording material containing an aldehyde remover

Color photographic recording material containing an emulsified, hyd...

Photographic recording material and new merocyanines

Light-sensitive material containing emulsified substances

Patents Applicationslast 30 patents

Colour photographic silver halide material