Inventor
COHEN NOAL
52 patents
Patents
50 patentsUS4806661AFeb 21, 1989
Chromanemelonate esters
HOFFMANN LA ROCHE14 citations74
US4752646AJun 21, 1988
2-halochromans
HOFFMANN LA ROCHE7 citations74
US4191842AMar 4, 1980
Protected alcohols
HOFFMANN LA ROCHE9 citations74
US4113740ASep 12, 1978
Synthesis of optically active vitamin E
HOFFMANN LA ROCHE13 citations74
US4051153ASep 27, 1977
Intermediates in the synthesis of vitamin E
HOFFMANN LA ROCHE13 citations74
US5434186AJul 18, 1995
Carboxylic acid leukotriene B4 antagonists
HOFFMANN LA ROCHE11 citations70
US5273999ADec 28, 1993
Carboxylic acid leukotriene B4 antagonists
HOFFMANN LA ROCHE7 citations70
US4434101AFeb 28, 1984
Inhibitors of SRS-synthesis
HOFFMANN LA ROCHE13 citations70
US4432906AFeb 21, 1984
Inhibitors of SRS-synthesis
HOFFMANN LA ROCHE10 citations70
US5457124AOct 10, 1995
Carboxylic acid Leukotriene B4 antagonists
HOFFMANN LA ROCHE10 citations68
US4650812AMar 17, 1987
4-oxo-3,4-dihydro-2H-1-benzopyranyloxy alkanoic acid derivatives
HOFFMANN LA ROCHE15 citations67
US4824971AApr 25, 1989
2-allylchromans
HOFFMANN LA ROCHE3 citations63
US4277610AJul 7, 1981
Synthesis of 2,6,10-trimethyl-undecan-1-ol
HOFFMANN LA ROCHE3 citations63
US4201869AMay 6, 1980
Intermediates for steroid total synthesis process utilizing asymmetric induction
HOFFMANN LA ROCHE2 citations63
US4189612AFeb 19, 1980
S-(+) 2,3,6-trimethyl-5-(2,2,4-trimethyl-1,3-dioxolane-4-ethyl)phenol
HOFFMANN LA ROCHE2 citations63
US4182719AJan 8, 1980
Synthesis of optically active vitamin E
HOFFMANN LA ROCHE3 citations63
US4180682ADec 25, 1979
Unsaturated alcohols having an ether protected group
HOFFMANN LA ROCHE4 citations63
US4163021AJul 31, 1979
Synthesis of 2,6,10-trimethyl-undecan-1-ol
HOFFMANN LA ROCHE3 citations63
US4151205AApr 24, 1979
Synthesis of vitamin E
HOFFMANN LA ROCHE5 citations63
US4151177AApr 24, 1979
Synthesis of optically active vitamin E
HOFFMANN LA ROCHE2 citations63
US4041058AAug 9, 1977
Synthesis of 2,6,10-trimethyl-undecan-1-ol
HOFFMANN LA ROCHE2 citations63
US4011211AMar 8, 1977
Steroid total synthesis process utilizing asymmetric induction
HOFFMANN LA ROCHE4 citations63
US3932519AJan 13, 1976
7,7A-Dihydro-4-[2-(3-alkoxyphenyl)-2-hydroxyethyl]-7a-alkyl-1, 5(6H)-indandiones,3,4,8,8a-tetrahydro-5-[2-(3-alkoxyphenyl)-2-hydroxyethyl]-8a-alkyl-1,6(7H)-naphthalenediones and processes for the preparation thereof utilizing asymmetric induction
HOFFMANN LA ROCHE3 citations63
US4788214ANov 29, 1988
3,4-dihydro-2H-1-benzopyran derivatives
HOFFMANN LA ROCHE6 citations60
US4785017ANov 15, 1988
3,4-dihydro-2H-1-benzopyran derivatives
HOFFMANN LA ROCHE3 citations60
US4942249AJul 17, 1990
Process for producing vitamin E
HOFFMANN LA ROCHE1 citations52
US4877890AOct 31, 1989
Vitamin E intermediate
HOFFMANN LA ROCHE1 citations52
US4801724AJan 31, 1989
Vitamin E intermediate
HOFFMANN LA ROCHE0 citations52
US4208332AJun 17, 1980
Synthesis of optically active vitamin E
HOFFMANN LA ROCHE0 citations52
US4208333AJun 17, 1980
Preparation of chroman-2-acetic acids
HOFFMANN LA ROCHE0 citations52
US4208331AJun 17, 1980
Synthesis of optically active vitamin E
HOFFMANN LA ROCHE0 citations52
US4205001AMay 27, 1980
Inversion process
HOFFMANN LA ROCHE0 citations52
US4192816AMar 11, 1980
Mixtures of 3-pentenenitriles and 3-methylene-pentanenitriles
HOFFMANN LA ROCHE0 citations52
US4186138AJan 29, 1980
Preparation of chroman-2-acetic acids
HOFFMANN LA ROCHE0 citations52
US4172958AOct 30, 1979
Ethers of 2,6,10-trimethyl-undecan-1-ols
HOFFMANN LA ROCHE0 citations52
US4169209ASep 25, 1979
Ethers of 2,6-dimethyl-octane-1,8-diols
HOFFMANN LA ROCHE0 citations52
US4150050AApr 17, 1979
3,6-Dioxo-1,4-cyclohexadien-1-yl-butandate esters
HOFFMANN LA ROCHE1 citations52
US4140702AFeb 20, 1979
Process for producing vitamin E intermediate compounds
HOFFMANN LA ROCHE0 citations52
US4140723AFeb 20, 1979
Intermediate compounds for producing vitamin E
HOFFMANN LA ROCHE0 citations52
US4111961ASep 5, 1978
Silicon ester of carboxylic acid
HOFFMANN LA ROCHE1 citations52
US4107183AAug 15, 1978
Synthesis of optically active carboxylic acid esters
HOFFMANN LA ROCHE0 citations52
US4105676AAug 8, 1978
Steroid total synthesis process utilizing a cyanoalkyl a-ring precursor
HOFFMANN LA ROCHE0 citations52
US4102925AJul 25, 1978
Steroid total synthesis process utilizing asymmetric induction
HOFFMANN LA ROCHE0 citations52
US4092483AMay 30, 1978
Intermediates for steroid total synthesis process utilizing asymmetric induction
HOFFMANN LA ROCHE0 citations52
US4071537AJan 31, 1978
Steroid total synthesis process utilizing a cyanoalkyl A-ring precursor
HOFFMANN LA ROCHE0 citations52
US4045452AAug 30, 1977
Steroid total synthesis process utilizing a cyanoalkyl A-ring precursor
HOFFMANN LA ROCHE0 citations52
US4003949AJan 18, 1977
Steroid intermediates
HOFFMANN LA ROCHE0 citations52
US3994930ANov 30, 1976
6-(3-Cyanopropyl)-2-vinyl tetrahydropyran-2-ol and its tautomer
HOFFMANN LA ROCHE1 citations52
US3991084ANov 9, 1976
Steroid total synthesis process utilizing a cyanoalkyl A-ring precursor
HOFFMANN LA ROCHE1 citations52
US3971809AJul 27, 1976
3A,4,7,7A-Tetrahydro-4-phenylethyl-7a-alkyl-5(6H)-indanones and process for the preparation thereof
HOFFMANN LA ROCHE0 citations52
Showing the top 50 of 52 patents by PatentIndex Score.