Inventor
PETERS MANFRED
DE29 patents
⚠️ This page may combine multiple inventors who share the name “PETERS MANFRED”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
AGFA GEVAERT AG
14 patentsUS4816372AMar 28, 1989
Heat development process and color photographic recording material suitable for this process
AGFA GEVAERT AG30 citations92
US4840885AJun 20, 1989
Color photographic recording material for the dye diffusion transfer process
AGFA GEVAERT AG8 citations74
US4585724AApr 29, 1986
Image receptor layer comprising polyvinyl imidazole and cationic polymer
AGFA GEVAERT AG11 citations74
US5266451ANov 30, 1993
Color photographic recording material
AGFA GEVAERT AG7 citations73
US4840871AJun 20, 1989
Color photographic heat development process
AGFA GEVAERT AG9 citations72
US4198235AApr 15, 1980
Dye diffusion transfer process employing compounds that release sulfonamide dye providing radicals
AGFA GEVAERT AG9 citations72
US4139387AFeb 13, 1979
Process for the production of direct-positive photographic images
AGFA GEVAERT AG11 citations72
US5292628AMar 8, 1994
Photographic silver halide element with gelatin layer containing silica
AGFA GEVAERT AG7 citations65
US4894312AJan 16, 1990
Dye diffusion process with base precursor salts of strong organic bases and weak organic acids
AGFA GEVAERT AG2 citations62
US4877722AOct 31, 1989
Color photographic recording material developable by heat
AGFA GEVAERT AG2 citations61
US4847179AJul 11, 1989
Photographic dye diffusion transfer process and color photographic recording material suitable for this process
AGFA GEVAERT AG3 citations61
US4429033AJan 31, 1984
Process for the production of color prints by the dye-diffusion transfer process
AGFA GEVAERT AG3 citations61
US5665532ASep 9, 1997
Black and white paper with variable gradation
AGFA GEVAERT AG1 citations51
US5756268AMay 26, 1998
Processing color photographic materials
AGFA GEVAERT AG1 citations49