Inventor
HUGHES DAVID L
US15 patents
⚠️ This page may combine multiple inventors who share the name “HUGHES DAVID L”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MERCK & CO INC
13 patentsUS5552521ASep 3, 1996
Process for preparing certain aza cyclohexapeptides
MERCK & CO INC46 citations90
US4894450AJan 16, 1990
Process for 2-(aminoalkylthio) carbapenems
MERCK & CO INC20 citations81
US5665882ASep 9, 1997
Pyridyl ethylation of lactams
MERCK & CO INC10 citations73
US5312923AMay 17, 1994
Process for preparing fibrinogen receptor antagonists
MERCK & CO INC9 citations73
US6333435B1Dec 25, 2001
Process of synthesizing binaphthyl derivatives
MERCK & CO INC12 citations69
US6262268B1Jul 17, 2001
Process and intermediates to a tetrahydro-[1,8]-naphthyridine
MERCK & CO INC4 citations62
US5340927AAug 23, 1994
Process for the preparation of 2-diazo-3-trisubstituted silyloxy 3-butenoates
MERCK & CO INC5 citations62
US5206373AApr 27, 1993
Process for preparing fibrinogen receptor antagonists
MERCK & CO INC6 citations62
US5157122AOct 20, 1992
Process for the preparation of 3-unsubstituted indoles using methane sulfonic acid as an additional catalyst
MERCK & CO INC3 citations62
US5126456AJun 30, 1992
7-chloroquinaldine synthesis
MERCK & CO INC2 citations61
US5892082AApr 6, 1999
Process for the preparation of dimethyl titanocene
MERCK & CO INC4 citations60
US4654433AMar 31, 1987
Process for the preparation of esters of amino acids
MERCK & CO INC1 citations51
US5070022ADec 3, 1991
Enzymic process for preparing leukotriene antagonists
MERCK & CO INC0 citations48