Inventor
WILLEMS JOZEF FRANS
12 patents
⚠️ This page may combine multiple inventors who share the name “WILLEMS JOZEF FRANS”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
AGFA GEVAERT NV
11 patentsUS4082901AApr 4, 1978
Thermographic material
AGFA GEVAERT NV54 citations91
US4013473AMar 22, 1977
Recording materials and image receiving materials for producing copies in a dry way
AGFA GEVAERT NV17 citations72
US3996397ADec 7, 1976
Thermographic recording process
AGFA GEVAERT NV9 citations72
US4013471AMar 22, 1977
Development of photographic silver halide elements
AGFA GEVAERT NV9 citations70
US4004926AJan 25, 1977
Formation of azine dyes
AGFA GEVAERT NV4 citations62
US3986877AOct 19, 1976
Development promoting compounds for silver halide photography
AGFA GEVAERT NV4 citations61
US4026708AMay 31, 1977
Direct-positive silver halide emulsions having incorporated developers
AGFA GEVAERT NV5 citations59
US4028110AJun 7, 1977
Development of exposed lith-emulsions
AGFA GEVAERT NV2 citations58
US4111697ASep 5, 1978
Novel antifogging and/or stabilizing compounds for silver halide photography
AGFA GEVAERT NV6 citations57
US4072526AFeb 7, 1978
Development of photographic silver halide material
AGFA GEVAERT NV5 citations57
US4038083AJul 26, 1977
Photothermographic recording sheet
AGFA GEVAERT NV1 citations49