Inventor · disambiguated record
William W. Leong
Also filed as: LEONG WILLIAM · LEONG WILLIAM W · LEONG WILLIAM WEI-HWA
36 granted patents·12 pending applications·213 citations·filing 1994–2025
97Inventor score
Files withCELGENE CORP17SCHERING CORP11GILGAMESH PHARMACEUTICALS INC5SIGNAL PHARM LLC5KYMERA THERAPEUTICS INC2
Top patents by PatentIndex Score
48 records- 0193US8802685B2Solid forms of 3-(5-amino-2-methyl-4-oxo-4H-quinazolin-3-yl)-piperidine-2,6-dione, and their pharmaceutical compositions and usesMULLER GEORGE·Filed 2012·Granted Aug 12, 2014·9 cites·61 claims
- 0292US10646503B2Isotopologues of 5-azacytidineCELGENE CORP·Filed 2019·Granted May 12, 2020·2 cites·1 claims
- 0392US9359364B2Pharmaceutical formulations, processes, solid forms and methods of use relating to 1-ethyl-7-(2-methyl-6-(1H-1,2,4-triazol-3-yl)pyridin-3-yl)-3,4-dihydropyrazino[2,3-b] pyrazin-2(1H)-oneSIGNAL PHARM LLC·Filed 2014·Granted Jun 7, 2016·10 cites·28 claims
- 0491US9067912B2Synthesis of 3-(5-amino-2-methyl-4-oxoquinazolin-3(4H)-yl)piperidine-2,8-dioneCELGENE CORP·Filed 2014·Granted Jun 30, 2015·5 cites·42 claims
- 0591US8569494B2Methods of synthesis and purification of heteroaryl compoundsHARRIS ROY L·Filed 2010·Granted Oct 29, 2013·27 cites·23 claims
- 0690US12187744B2IRAK4 degraders and synthesis thereofKYMERA THERAPEUTICS INC·Filed 2022·Granted Jan 7, 2025·6 cites·18 claims
- 0790US9126906B2Asymmetric synthetic processes for the preparation of aminosulfone compoundsCELGENE CORP·Filed 2013·Granted Sep 8, 2015·5 cites·43 claims
- 0889US9309220B2Processes for the preparation of (S)-3-(4- (4-(morpholinomethyl)benzyl)oxy)-1-oxoisoindolin-2-yl)piperidine-2,6-dione and pharmaceutically acceptable forms thereofCELGENE CORP·Filed 2013·Granted Apr 12, 2016·14 cites·34 claims
- 0989US6958337B2Crystalline antifungal polymorphSCHERING CORP·Filed 2004·Granted Oct 25, 2005·20 cites·7 claims
- 1088US10463683B2Isotopologues of 5-azacytidineCELGENE CORP·Filed 2019·Granted Nov 5, 2019·3 cites·1 claims
- 1188US9403829B2Pharmaceutical compositions of 7-(6-(2-hydroxypropan-2-yl)pyridin-3-yl)-1-((trans)-4-methoxycyclohexyl)-3,4-dihydropyrazino [2,3-b]pyrazin-2(1H)-one, a solid form thereof and methods of their useSIGNAL PHARM LLC·Filed 2012·Granted Aug 2, 2016·13 cites·29 claims
- 1287US10220050B2Isotopologues of 5-azacytidineCELGENE CORP·Filed 2017·Granted Mar 5, 2019·3 cites·1 claims
- 1387US9751853B2Solid forms of 3-(5-amino-2-methyl-4-oxo-4H-quinazolin-3-yl)-piperidine-2,6-dione, and their pharmaceutical compositions and usesCELGENE CORP·Filed 2015·Granted Sep 5, 2017·4 cites·10 claims
- 1487US9249121B2Solid forms of 3-(5-amino-2-methyl-4-oxo-4H-quinazolin-3-yl)-piperidine-2,6-dione, and their pharmaceutical compositions and usesCELGENE CORP·Filed 2014·Granted Feb 2, 2016·2 cites·53 claims
- 1586US9969713B2Solid forms of 3-(5-amino-2-methyl-4-oxo-4H-quinazolin-3-yl)-piperidine-2,6-dione, and their pharmaceutical compositions and usesCELGENE CORP·Filed 2017·Granted May 15, 2018·1 cites·15 claims
- 1685US8686135B2Methods of synthesis and purification of heteroaryl compoundsSIGNAL PHARM LLC·Filed 2013·Granted Apr 1, 2014·8 cites·21 claims
- 1784US9079900B2Methods of synthesis and purification of heteroaryl compoundsSIGNAL PHARM LLC·Filed 2014·Granted Jul 14, 2015·5 cites·27 claims
- 1879US12180158B1Crystalline fumarate salts of n-ethyl-2-(5-fluoro-1H-indol-3-yl)-n-methylethan-1-amineGILGAMESH PHARMACEUTICALS INC·Filed 2023·Granted Dec 31, 2024·0 cites·30 claims
- 1979US12157722B1Crystalline hydrochloride salts of N-ethyl-2-(5-fluoro-1H-indol-3-yl)-N-methylethan-1-amineGILGAMESH PHARMACEUTICALS INC·Filed 2023·Granted Dec 3, 2024·0 cites·10 claims
- 2078US9975872B2Processes for the preparation of (s)-3-(4-((4-(morpholinomethyl)benzyl)oxy)-1-oxoisoindolin-2-yl)piperidine-2,6-dione and pharmaceutically acceptable forms thereofCELGENE CORP·Filed 2016·Granted May 22, 2018·2 cites·12 claims
- 2178US5625064AProcess for the preparation of triazolonesSCHERING CORP·Filed 1995·Granted Apr 29, 1997·25 cites·19 claims
- 2278US5486625AProcess for the preparation of chiral intermediates useful for the synthesis of antifungal agentsSCHERING CORP·Filed 1994·Granted Jan 23, 1996·23 cites·17 claims
- 2376US9682952B2Isotopologues of 3-(5-amino-2-methyl-4-oxoquinazolin-3(4H)-yl) piperidine-2-6-dione and methods of preparation thereofCELGENE CORP·Filed 2013·Granted Jun 20, 2017·2 cites·10 claims
- 2476US2025115552A1Crystalline hydrochloride salts of n-ethyl-2-(5-fluoro-1h-indol-3-yl)-n-methylethan-1-amineGILGAMESH PHARMACEUTICALS INC·Filed 2024·Application pending·0 cites
- 2575US9303014B2Synthesis of 3-(5-amino-2-methyl-4-oxoquinazolin-3(4H)-yl)piperidine-2,6-dioneCELGENE CORP·Filed 2015·Granted Apr 5, 2016·1 cites·3 claims
- 2674US9266858B2Synthesis of 3-(5-amino-2-methyl-4-oxoquinazolin-3(4H)-yl)piperidine-2,6-dioneCELGENE CORP·Filed 2015·Granted Feb 23, 2016·1 cites·24 claims
- 2773US7728135B2Synthesis of CCR5 receptor antagonistsSCHERING CORP·Filed 2006·Granted Jun 1, 2010·2 cites·36 claims
- 2872US7521452B2Preparation of pharmaceutical salts of piperazine compoundsSCHERING CORP·Filed 2006·Granted Apr 21, 2009·1 cites·9 claims
- 2972US6713481B1Crystalline antifungal polymorphFiled 1998·Granted Mar 30, 2004·13 cites·5 claims
- 3072US2020316099A1Isotopologues of 5-azacytidineCELGENE CORP·Filed 2020·Application pending·0 cites
- 3170US2025084105A1Irak4 degraders and synthesis thereofKYMERA THERAPEUTICS INC·Filed 2024·Application pending·0 cites
- 3269US12129234B1Crystalline salts of N-ethyl-(5-fluoro-1H-indol-3-yl)-N-methylethan-1-amineGILGAMESH PHARMACEUTICALS INC·Filed 2023·Granted Oct 29, 2024·0 cites·30 claims
- 3368US2015056280A1Isotopologues of 5-azacytidineCELGENE CORP·Filed 2014·Application pending·0 cites
- 3467US6936718B2Preparation of rotamer mixtures of pharmaceutical saltsSCHERING CORP·Filed 2002·Granted Aug 30, 2005·4 cites·39 claims
- 3566US2018305333A1Solid forms of 3-(5-amino-2-methyl-4-oxo-4h-quinazolin-3-yl)-piperidine-2,6-dione, and their pharmaceutical compositions and usesCELGENE CORP·Filed 2018·Application pending·0 cites
- 3665US2025257031A1Process for the production of substituted 2-[2-(phenyl)ethylamino]alkaneamide derivativesNEWRON PHARM SPA·Filed 2025·Application pending·0 cites
- 3764US9827243B2Pharmaceutical formulations, processes, solid forms and methods of use relating to 1-ethyl-7-(2-methyl-6-(1H-1,2,4-triazol-3-yl)pyridin-3-yl)-3,4-dihydropyrazino[2,3-b]pyrazin-2(1H)-oneSIGNAL PHARM LLC·Filed 2016·Granted Nov 28, 2017·0 cites·17 claims
- 3864US2025042851A1Crystalline salts of n-ethyl-(5-fluoro-1h-indol-3-yl)-n-methylethan-1-amineGILGAMESH PHARMACEUTICALS INC·Filed 2024·Application pending·0 cites
- 3963US6992189B2Synthesis of piperidine and piperazine compounds as CCR5 antagonistsSCHERING CORP·Filed 2003·Granted Jan 31, 2006·2 cites·14 claims
- 4058US2010036125A1Synthesis of ccr5 receptor antagonistsSCHERING CORP·Filed 2009·Application pending·0 cites
- 4156US2009093496A1Preparation of pharmaceutical salts of piperazine compoundsWU WENXUE·Filed 2008·Application pending·0 cites
- 4255US12291495B2Process for the production of substituted 2-[2-(phenyl)ethylamino] alkaneamide derivativesNEWRON PHARM SPA·Filed 2020·Granted May 6, 2025·0 cites·20 claims
- 4348US2010063280A1Process for preparing ccr-5 receptor antagonists utilizing 4-substituted 1-cyclopropane-sulfonyl-piperidinyl compoundsSCHERING CORP·Filed 2007·Application pending·0 cites
- 4448US2018093965A1Isotopologues of 3-(5-amino-2-methyl-4-oxoquinazolin-3(4h)-yl)piperidine-2,6-dione and methods of preparation thereofCELGENE CORP·Filed 2017·Application pending·0 cites
- 4545US2005187248A1Synthesis of piperidine and piperazine compounds as CCR5 antagonistsFiled 2005·Application pending·0 cites
- 4636US6818773B2Synthesis of 4-[(Z)-4-bromophenyl)(ethoxyimino) methyl]-1'-[(2,4-dimethyl-1-oxido-3-pyridinyl)carbony)]-4'-methyl-1,4-′bipiperidineSCHERING CORP·Filed 2002·Granted Nov 16, 2004·0 cites·42 claims
- 4728US8598343B2Process for preparing a 2-alkynyl substituted 5-amino-pyrazolo-[4,3-e]-1,2,4-triazolo[1,5-c]pyrimidineKUO SHEN-CHUN·Filed 2010·Granted Dec 3, 2013·0 cites·5 claims
- 4825US5684197AProcess for preparation of hydrazidesSCHERING CORP·Filed 1996·Granted Nov 4, 1997·0 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →