Inventor · disambiguated record
Yuen-Lung L. Sing
Also filed as: SING YUEN-LUNG L · SING YUEN-LUNG LAWRENCE
22 granted patents·11 pending applications·145 citations·filing 1987–2009
95Inventor score
Top patents by PatentIndex Score
33 records- 0192US7129345B2Keto-substituted steroid compoundsPHARMACIA CORP·Filed 2005·Granted Oct 31, 2006·8 cites·17 claims
- 0291US5981744AProcesses for preparation of 9,11-epoxy steroids and intermediates useful thereinSEARLE & CO·Filed 1996·Granted Nov 9, 1999·38 cites·26 claims
- 0382US4988384APenta-substituted pyridine compounds, herbicidal compositions and herbicidal method of useMONSANTO CO·Filed 1987·Granted Jan 29, 1991·16 cites·59 claims
- 0480US5219824ASubstituted 2,6-substituted pyridine compounds useful as herbicidesMONSANTO CO·Filed 1991·Granted Jun 15, 1993·16 cites·34 claims
- 0578US6610844B2Processes for preparation of 9,11-epoxy steroids and intermediates useful thereinSEARLE & CO·Filed 2002·Granted Aug 26, 2003·11 cites·18 claims
- 0677US6887991B1Processes for preparation of 9, 11-epoxy steroids and intermediates useful thereinSEARLE & CO·Filed 2003·Granted May 3, 2005·8 cites·6 claims
- 0776US6180780B1Processes for preparation of 9,11-epoxy steroids and intermediates useful thereinSEARLE & CO·Filed 1999·Granted Jan 30, 2001·10 cites·8 claims
- 0876US5260262ASubstituted pyridine compounds having herbicidal activityMONSANTO CO·Filed 1991·Granted Nov 9, 1993·16 cites·15 claims
- 0975US6335441B15β-cyano-substituted steroid compoundsSEARLE & CO·Filed 2000·Granted Jan 1, 2002·2 cites·13 claims
- 1072US6630587B2Processes for preparation of 9,11-epoxy steroids and intermediates useful thereinSEARLE & CO·Filed 2001·Granted Oct 7, 2003·3 cites·4 claims
- 1171US7112669B2Processes for preparation of 9,11-epoxy steroids and intermediates useful thereinPHARMACIA CORP OF PFIZER INC·Filed 2005·Granted Sep 26, 2006·1 cites·20 claims
- 1271US6586591B2Process for preparation of 9,11-epoxy steroids and intermediates useful thereinSEARLE & CO·Filed 2001·Granted Jul 1, 2003·1 cites·11 claims
- 1365US6953851B2Processes for preparation of 9,11-epoxy steroids and intermediates useful thereinSEARLE & CO·Filed 2003·Granted Oct 11, 2005·1 cites·16 claims
- 1462US2007060746A1Processes for preparation of 9,11 epoxy steroids and intermediates useful thereinG D SEARLE LLC FORMERLY NAMED·Filed 2006·Application pending·0 cites
- 1559US6331622B1Processes for preparation of 9, 11-epoxy steroids and intermediates useful thereinSEARLE & CO·Filed 1999·Granted Dec 18, 2001·6 cites·55 claims
- 1657US2008027237A1Processes for preparations of 9,11-epoxy steroids and intermediates useful thereinNG JOHN S·Filed 2006·Application pending·0 cites
- 1755US7038040B2Process for preparation of 9, 11-epoxy steroids and intermediates useful thereinSEARLE & CO·Filed 2003·Granted May 2, 2006·0 cites·18 claims
- 1851US6258946B1Keto-Substituted Steroid CompoundsSEARLE & CO·Filed 2000·Granted Jul 10, 2001·0 cites·4 claims
- 1950US4826532ASubstituted 2,6-substituted pyridine compoundsMONSANTO CO·Filed 1987·Granted May 2, 1989·4 cites·15 claims
- 2050US2002019522A1Processes for preparation of 9-11, epoxy steroids and intermediates useful thereinFiled 2001·Application pending·0 cites
- 2150US2002016455A1Processes for preparation of 9,11- epoxy steroids and intermediates useful thereinFiled 2001·Application pending·0 cites
- 2248US2005261261A1Eplerenone drug substance having high phase purityPHARMACIA CORP·Filed 2005·Application pending·0 cites
- 2346US5100461ASubstituted 2,6-substituted pyridine compounds having herbicidal activityMONSANTO CO·Filed 1990·Granted Mar 31, 1992·4 cites·33 claims
- 2445US2009149431A1Eplerenone Drug Substance Having High Phase PurityBARTON KATHLEEN P·Filed 2009·Application pending·0 cites
- 2543US2005159594A1Eplerenone crystal form exhibiting enhanced dissolution ratePHARMACIA CORP·Filed 2004·Application pending·0 cites
- 2642US2003083493A1Eplerenone drug substance having high phase purityFiled 2002·Application pending·0 cites
- 2741US2005267302A1Eplerenone crystalline form exhibiting enhanced dissolution rateSEARLE & CO·Filed 2003·Application pending·0 cites
- 2834US5773389ASubstituted 2,6-substituted pyridine compoundsROHM & HAAS·Filed 1995·Granted Jun 30, 1998·0 cites·21 claims
- 2934US5424274ASubstituted 2,6-substituted pyridine compoundsROHM & HAAS·Filed 1993·Granted Jun 13, 1995·0 cites·18 claims
- 3034US5380699ASubstituted pyridine compounds useful as herbicidal agentsROHM & HAAS·Filed 1993·Granted Jan 10, 1995·0 cites·15 claims
- 3134US5298479ASubstituted pyridine compounds which have herbicidal utilityMONSANTO CO·Filed 1993·Granted Mar 29, 1994·0 cites·33 claims
- 3234US2002045746A1Eplerenone crystalline formFiled 2000·Application pending·0 cites
- 3334US2002038021A1Eplerenone crystalline form exhibiting enhanced dissolution rateFiled 2000·Application pending·0 cites
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