Inventor
EL-SAYED LYLA M
US19 patents
⚠️ This page may combine multiple inventors who share the name “EL-SAYED LYLA M”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
DU PONT
15 patentsUS4886726ADec 12, 1989
Glycerides as charge directors for liquid electrostatic developers
DU PONT33 citations92
US5035972AJul 30, 1991
AB diblock copolymers as charge directors for negative electrostatic liquid developer
DU PONT25 citations88
US4702984AOct 27, 1987
Polybutylene succinimide as adjuvant for electrostatic liquid developer
DU PONT24 citations81
US4935328AJun 19, 1990
Monofunctional amines as adjuvant for liquid electrostatic developers
DU PONT8 citations74
US4783388ANov 8, 1988
Quaternaryammonium hydroxide as adjuvant for liquid electrostatic developers
DU PONT12 citations74
US5009980AApr 23, 1991
Aromatic nitrogen-containing compounds as adjuvants for electrostatic liquid developers
DU PONT16 citations73
US4985329AJan 15, 1991
Bipolar liquid electrostatic developer
DU PONT15 citations73
US4977056ADec 11, 1990
Alkylhydroxy benzylpolyamine as adjuvant for electrostatic liquid developers
DU PONT8 citations73
US4917985AApr 17, 1990
Organic sulfur-containing compounds as adjuvants for positive electrostatic liquid developers
DU PONT13 citations73
US4820605AApr 11, 1989
Modified liquid electrostatic developer having improved image scratch resistance
DU PONT15 citations73
US4798778AJan 17, 1989
Liquid electrostatic developers containing modified resin particles
DU PONT17 citations73
US4780389AOct 25, 1988
Inorganic metal salt as adjuvant for negative liquid electrostatic developers
DU PONT15 citations73
US4758494AJul 19, 1988
Inorganic metal salt as adjuvant for negative liquid electrostatic developers
DU PONT14 citations73
US5053306AOct 1, 1991
Acid-containing a-b block copolymers as grinding aids in liquid electrostatic developer preparation
DU PONT9 citations72
US5002848AMar 26, 1991
Substituted carboxylic acids as adjuvants for positive electrostatic liquid developers
DU PONT4 citations59