Inventor
LONG WILLIAM E
US25 patents
⚠️ This page may combine multiple inventors who share the name “LONG WILLIAM E”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CIBA GEIGY AG
17 patentsUS4609620ASep 2, 1986
Pyrazolone compounds and a process for their manufacture
CIBA GEIGY AG9 citations73
US4788115ANov 29, 1988
Processing holograms
CIBA GEIGY AG11 citations72
US4917992AApr 17, 1990
Developing agents
CIBA GEIGY AG8 citations71
US4753869AJun 28, 1988
Photographic developing agents containing stable, soluble, pyrazolidinones
CIBA GEIGY AG9 citations68
US4728601AMar 1, 1988
Tetra-aza indene compounds
CIBA GEIGY AG13 citations68
US4482716ANov 13, 1984
Dyestuffs and their use in photographic material
CIBA GEIGY AG2 citations62
US4248772AFeb 3, 1981
Positively or negatively charged azo compounds containing a ballasting group
CIBA GEIGY AG2 citations62
US4687846AAug 18, 1987
Pyrazolidinone salts as developing agents
CIBA GEIGY AG1 citations60
US4353974AOct 12, 1982
Process for the production of photographic images and photographic materials used in this process
CIBA GEIGY AG4 citations60
US4386149AMay 31, 1983
Process for the production of photographic images by dye diffusion transfer and photographic material suitable in this process
CIBA GEIGY AG4 citations59
US4446227AMay 1, 1984
Dyestuffs and their use in photographic material
CIBA GEIGY AG1 citations52
US4335245AJun 15, 1982
Process for preparing certain pyridine 2,3,6-triones
CIBA GEIGY AG0 citations52
US4288598ASep 8, 1981
Pyridine-2,3,6-triones
CIBA GEIGY AG0 citations52
US4285859AAug 25, 1981
Azo compounds useful in a photographic dye diffusion transfer process
CIBA GEIGY AG1 citations50
US4216146AAug 5, 1980
Azo(hydrazo)-anthraquinone compounds
CIBA GEIGY AG1 citations50
US4732981AMar 22, 1988
3-pyrazolidinone salts
CIBA GEIGY AG0 citations49
US4560646ADec 24, 1985
Protected developing agents
CIBA GEIGY AG1 citations46