Assignee
ISF SPA
32 patents
Top patents by PatentIndex Score
US4013075AMar 22, 1977
Inhalers and insufflators having a cutting means
ISF SPA252 citations97
US4118396AOct 3, 1978
Pyrrolidine derivatives
ISF SPA53 citations96
US4173569ANov 6, 1979
Preparation of pyrrolidine and pyrrolidin-2-one derivatives
ISF SPA56 citations94
US4124594ANov 7, 1978
4-Hydroxy pyrrolidin-2-onyl-amides
ISF SPA41 citations91
US5122376AJun 16, 1992
Calcitonin gene related peptide
ISF SPA32 citations89
US3976673AAug 24, 1976
4-Cyclopropylmethyleneoxy-3-chlorophenylacetic acid and salts thereof
ISF SPA24 citations82
US4530934AJul 23, 1985
Pharmaceutically active ursolic acid derivative
ISF SPA7 citations73
US4324788AApr 13, 1982
Alkoxyalkylidenhydrazinopridazines and process for their preparation
ISF SPA7 citations73
US5130319AJul 14, 1992
Pharmacologically active 2,5-dioxo-octahydro-imidazo [1,2-a]pyridines
ISF SPA7 citations72
US5053422AOct 1, 1991
Psychotropic perhydroazacycloalka [1,2-A] imidazole derivatives
ISF SPA11 citations72
US4868313ASep 19, 1989
A process for making pyrrolidone derivatives
ISF SPA8 citations72
US4824861AApr 25, 1989
Pyrrolidone derivatives and memory enhancement use thereof
ISF SPA6 citations72
US4788300ANov 29, 1988
Substituted butanamido acetate compounds for the preparation of pyrrolidone derivatives
ISF SPA8 citations71
US4629797ADec 16, 1986
Process for the preparation of pyrrolidone derivatives
ISF SPA9 citations71
US5183802AFeb 2, 1993
Pharmaceutical compositions for intranasal administration of calcitonin
ISF SPA17 citations70
US4173648ANov 6, 1979
3β-Hydroxy-18β-olean-9-en-30-oic acids
ISF SPA12 citations68
US4002753AJan 11, 1977
6-Substituted 3-carbethoxyhydrazinopyridazines
ISF SPA8 citations67
US4632982ADec 30, 1986
Triphenylmethyl azo and hydrazino substituted pyridazines
ISF SPA1 citations63
US4575552AMar 11, 1986
Process of making ethyl[6-[ethyl-(2-hydroxypropyl)amino]-3-pyridazinyl]hydrazine carboxylate
ISF SPA4 citations63
US3984461AOct 5, 1976
3-0-(Beta-carbobenzyloxypropionyl)-11-oxo-18-beta-olean-12-en-30-oic acid
ISF SPA3 citations62
US5200406AApr 6, 1993
Pharmaceutically useful 2,5-dioxo-1H-octahydroimidazo[1,2-A]azepines
ISF SPA5 citations61
US4719222AJan 12, 1988
Pharmacologically active 5-oxo-1-imidazolidine acetamide compounds
ISF SPA3 citations61
US4797496AJan 10, 1989
Process for the preparation of pyrrolidone derivatives
ISF SPA6 citations60
US4757142AJul 12, 1988
Process for preparing 6-amino-3-hydrazinopyridazine derivatives
ISF SPA5 citations59
US4581449AApr 8, 1986
Process of making ethyl{6-[ethyl-(2-hydroxypropyl)amino]-3-pyridazinyl}hydrazinecarboxylate
ISF SPA5 citations59
US3998950ADec 21, 1976
7-αHydrazinoacetamido derivatives of cephalosporanic
ISF SPA4 citations59
US4086343AApr 25, 1978
Acylated hydrazinopyridazine antihypertensives
ISF SPA2 citations57
US4703054AOct 27, 1987
Nootropic imidazolidinones
ISF SPA1 citations51
US5082939AJan 21, 1992
Pyridazine derivatives
ISF SPA1 citations50
US4873328AOct 10, 1989
Process for preparing alkoxyalkylidenehydrazinopyridazine derivatives
ISF SPA1 citations50
US4465831AAug 14, 1984
Ketoiminocephalosporin derivatives
ISF SPA1 citations46
US4122111AOct 24, 1978
Carbamoylthiobenzamides and compositions comprising same
ISF SPA1 citations33