Walter Patzold

Person

Leverkusen, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Photographic silver halide emulsion
- Patent number 5,229,264
- Issue date Jul 20, 1993
- Agfa-Gevaert Aktiengesellschaft
- Walter Patzold
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Gradation-variable black-and-white paper
- Patent number 5,006,455
- Issue date Apr 9, 1991
- Agfa-Gevaert Aktiengesellschaft
- Walter Patzold
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photographic silver halide emulsion containing gelatine
- Patent number 4,990,440
- Issue date Feb 5, 1991
- AGFA-Gevaert Aktiengessellschaft
- Franz Moll
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Gradation variable black- and -white paper
- Patent number 4,987,063
- Issue date Jan 22, 1991
- Agfa-Gevaert Aktiengesellschaft
- Helmut Kampfer
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photographic recording material
- Patent number 4,810,627
- Issue date Mar 7, 1989
- Agfa-Gevaert Aktiengesellschaft
- Hans Ohlschlager
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Tamper-proof document
- Patent number 4,455,359
- Issue date Jun 19, 1984
- Agfa-Gevaert Aktiengesellschaft
- Walter Patzold
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
Information Patent Grant
Emulsion mixture for color reversal (reflection viewing) material
- Patent number 4,301,242
- Issue date Nov 17, 1981
- Agfa-Gevaert Aktiengesellschaft
- Walter Patzold
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photographic material with improved properties
- Patent number 4,210,714
- Issue date Jul 1, 1980
- AGFA-Gevaert, A.G.
- Heinrich Odenwalder
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Walter Patzold

Person

Patents Grantslast 30 patents

Photographic silver halide emulsion

Gradation-variable black-and-white paper

Photographic silver halide emulsion containing gelatine

Gradation variable black- and -white paper

Photographic recording material

Tamper-proof document

Emulsion mixture for color reversal (reflection viewing) material

Photographic material with improved properties