Inventor

CREDNER HANS-HEINRICH

DE15 patents

⚠️ This page may combine multiple inventors who share the name “CREDNER HANS-HEINRICH”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

AGFA GEVAERT AG

9 patents

US4175968ANov 27, 1979

Color photographic materials containing anti-fogging agents

AGFA GEVAERT AG9 citations73

US4369243AJan 18, 1983

Photographic recording material for diffusion processes and useful non-diffusing sulfilimine compounds

AGFA GEVAERT AG11 citations72

US4052213AOct 4, 1977

Photographic recording material for diffusion processes and new non-diffusing sulfilimine compounds suitable for use therein

AGFA GEVAERT AG1 citations51

US4059447ANov 22, 1977

Photographic material containing oxazolinone-2 couplers

AGFA GEVAERT AG1 citations51

US3941601AMar 2, 1976

Photographic silver halide material which contains color couplers

AGFA GEVAERT AG1 citations50

US4275200AJun 23, 1981

Process for the production of oxazolinone-2-compounds

AGFA GEVAERT AG1 citations46

AGFA GEVAERT NV

3 patents

US4123281AOct 31, 1978

Photographic silver halide color material containing fast-acting hardener and 2-pyrazolin-5-one coupler precursors

AGFA GEVAERT NV9 citations71

US4062683ADec 13, 1977

Photographic material containing 3-anilino-5-pyrazolylalkylcarbonate or arylcarbonate couplers

AGFA GEVAERT NV5 citations57

US4061498ADec 6, 1977

Photographic material containing 2-acyl-2-pyrazolin-5-on-couplers

AGFA GEVAERT NV4 citations57

BASF MAGNETICS GMBH

3 patents

US5415929AMay 16, 1995

Magnetic recording medium having a magnetic layer prepared from magnetic particles using specified dispersants which enhance the electrostatic change on the magnetic pigment surface

BASF MAGNETICS GMBH2 citations62

US5660760AAug 26, 1997

Magnetic coating dispersion

BASF MAGNETICS GMBH0 citations47

US5256497AOct 26, 1993

Magnetic tape containing abrasives

BASF MAGNETICS GMBH1 citations45