Inventor · disambiguated record
Kenneth M. Ryan
Also filed as: RYAN KENNETH M
17 granted patents·170 citations·filing 1979–1995
94Inventor score
Top patents by PatentIndex Score
17 records- 0192US4282148ASynthesis of thienamycin via esters of (3SR, 4RS)-3-[(SR)-1-hydroxyethyl]-β,2-dioxo-4-azetidinebutanoic acidMERCK & CO INC·Filed 1980·Granted Aug 4, 1981·28 cites·2 claims
- 0290US4287123ASynthesis of thienamycin via (3SR, 4RS)-3-((RS)-1-acyloxyethyl)-2-oxo-4-azetidineacetateMERCK & CO INC·Filed 1980·Granted Sep 1, 1981·24 cites·2 claims
- 0382US4269772ASynthesis of thienamycin via trans-3-carboxymethylene-4-carboxy-5-methyl-Δ2 -isoxazolineMERCK & CO INC·Filed 1980·Granted May 26, 1981·29 cites·1 claims
- 0482US4252722AProcess for the preparation of 6-hydroxymethyl-2-(β-aminoethylthio)-1-carbadethiapen-2-em-3-carboxylic acidMERCK & CO INC·Filed 1979·Granted Feb 24, 1981·10 cites·1 claims
- 0577US4414155ASynthesis of thienamycin via esters of (3SR, 4RS)-3-[(SR)-1-hydroxyethyl]-β,2-dioxo-4-azetidinebutanoic acidMERCK & CO INC·Filed 1982·Granted Nov 8, 1983·10 cites·2 claims
- 0677US4360684AProcess for the preparation of (2S)-tetrahydro-2α-methyl-6-oxo-4βα-carboxylic acidMERCK & CO INC·Filed 1981·Granted Nov 23, 1982·10 cites·2 claims
- 0776US4473502ASynthesis of thienamycin via (3SR, 4RS)-3-[1 (SR)-hydroxyethyl]-2-oxo-4-azetidineacetic acidMERCK & CO INC·Filed 1982·Granted Sep 25, 1984·9 cites·1 claims
- 0869US4467107A1-Hydroxyethyl-2-amino pentanedioic acid derivativesMERCK & CO INC·Filed 1982·Granted Aug 21, 1984·6 cites·3 claims
- 0963US4499278ATrans-3-carboxymethylene-4-carboxy-5-methyl-delta2-isoxazoline as intermediateMERCK & CO INC·Filed 1982·Granted Feb 12, 1985·5 cites·2 claims
- 1060US5420353ARegiospecific process to make cis-1-amino-2-alkanol from epoxideMERCK & CO INC·Filed 1994·Granted May 30, 1995·8 cites·5 claims
- 1157US5449830ARegiospecific processes to make CIS-1-Amino-2-Alkanol from Diol or HalohydrinMARCK & CO INC·Filed 1994·Granted Sep 12, 1995·7 cites·6 claims
- 1257US4349687AIntermediate for synthesis of thienamycin via (3SR, 4RS)-3-[1 (SR)-hydroxyethyl]-2-oxo-4-azetidineacetic acidMERCK & CO INC·Filed 1981·Granted Sep 14, 1982·9 cites·1 claims
- 1357US4344885AIntermediate for the preparation of thienamycinMERCK & CO INC·Filed 1981·Granted Aug 17, 1982·9 cites·1 claims
- 1456US4454332AHydroxy amino dicarboxylic acids and estersMERCK & CO INC·Filed 1982·Granted Jun 12, 1984·3 cites·6 claims
- 1544US5087703AProcess for synthesis of FK-506 intermediatesMERCK & CO INC·Filed 1990·Granted Feb 11, 1992·2 cites·9 claims
- 1638US5489710ARegiospecific processes to make cis-1-amino-2-alkanol from diolMERCK & CO INC·Filed 1995·Granted Feb 6, 1996·1 cites·6 claims
- 1734US4375433AProcess for the preparation of 6-hydroxymethyl-2-(β-aminoethylthio)-1-carbadethiapen-2-em-3-carboxylic acidMERCK & CO INC·Filed 1980·Granted Mar 1, 1983·0 cites·1 claims
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