Inventor
LANGEN HANS
DE38 patents
⚠️ This page may combine multiple inventors who share the name “LANGEN HANS”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
AGFA GEVAERT AG
23 patentsUS4749643AJun 7, 1988
Photographic recording element containing a UV absorbent and a silver halide emulsion layer
AGFA GEVAERT AG75 citations96
US4943519AJul 24, 1990
Light sensitive, stabilized photographic recording material
AGFA GEVAERT AG18 citations74
US4459130AJul 10, 1984
Solid preparation of water-soluble acid dye and polymer particles with quaternary ammonium or phosphonium groups
AGFA GEVAERT AG9 citations74
US5981160ANov 9, 1999
Color photographic silver halide material
AGFA GEVAERT AG7 citations73
US4963465AOct 16, 1990
Color photographic negative recording material
AGFA GEVAERT AG10 citations73
US4414309ANov 8, 1983
Photographic recording material containing an aldehyde remover
AGFA GEVAERT AG9 citations73
US4003748AJan 18, 1977
Incorporation process
AGFA GEVAERT AG8 citations73
US6013428AJan 11, 2000
Color photographic recording material having a 2-equivalent magenta coupler and a white coupler
AGFA GEVAERT AG7 citations72
US5702877ADec 30, 1997
Color photographic silver halide material
AGFA GEVAERT AG16 citations71
US5108883AApr 28, 1992
Color photographic recording material
AGFA GEVAERT AG7 citations68
US5075207ADec 24, 1991
Color photographic recording material containing new colored cyan couplers
AGFA GEVAERT AG8 citations68
US4939079AJul 3, 1990
Photographic recording material
AGFA GEVAERT AG3 citations63
US4756998AJul 12, 1988
Polymeric couplers and light-sensitive photographic silver halide recording material containing such couplers
AGFA GEVAERT AG6 citations63
US4418142ANov 29, 1983
Light-sensitive photographic silver halide recording material
AGFA GEVAERT AG5 citations63
US5241058AAug 31, 1993
Azo dye salts useful as masking couplers and preparation thereof
AGFA GEVAERT AG2 citations62
US4368259AJan 11, 1983
Color photographic recording material containing an emulsified, hydrophilic color-forming compound
AGFA GEVAERT AG4 citations62
US5601968AFeb 11, 1997
Color photographic silver halide material
AGFA GEVAERT AG2 citations60
US4738919AApr 19, 1988
Photosensitive photographic silver halide recording material
AGFA GEVAERT AG4 citations59
US4106940AAug 15, 1978
Light-sensitive material containing emulsified substances
AGFA GEVAERT AG2 citations57
US4617255AOct 14, 1986
Color coupler-containing photographic material
AGFA GEVAERT AG0 citations52
US4576907AMar 18, 1986
Color-photographic recording material
AGFA GEVAERT AG1 citations52
US4366221ADec 28, 1982
Photographic recording material and new merocyanines
AGFA GEVAERT AG1 citations52
US5266449ANov 30, 1993
Bleaching bath
AGFA GEVAERT AG0 citations45
KERNFORSCHUNGSANLAGE JUELICH
5 patentsUS4430030AFeb 7, 1984
Operating process for the formation of a steady particle stream of particles conveyed within a flow conduit by a flow medium and arrangement for effectuation of the process
KERNFORSCHUNGSANLAGE JUELICH13 citations73
US4193953AMar 18, 1980
Hydrosol droplet casting process for production of nuclear fuel and breeder material granules
KERNFORSCHUNGSANLAGE JUELICH12 citations73
US4224258ASep 23, 1980
Method and apparatus for producing spherical particles of uniform size of nuclear fuels or breeder materials
KERNFORSCHUNGSANLAGE JUELICH10 citations71
US4035450AJul 12, 1977
Device for making ball-shaped metal oxide particles and metal carbide particles
KERNFORSCHUNGSANLAGE JUELICH2 citations59
US4859368AAug 22, 1989
Process for the containment of materials in a ceramic matrix through the chemical precipitation of a hydrosol of the matrix
KERNFORSCHUNGSANLAGE JUELICH1 citations45