William W. Leong
36Patents
7h-index
83Co-inventors
72Inventor score
Filing activity: Jul 8, 1994 → Sep 14, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8569494B2 | Methods of synthesis and purification of heteroaryl compounds | Chemistry; Metallurgy | 19 | Active |
| US5486625A | Process for the preparation of chiral intermediates useful for the synthesis of antifungal agents | Chemistry; Metallurgy | 18 | Expired |
| US9309220B2 | Processes for the preparation of (S)-3-(4- (4-(morpholinomethyl)benzyl)oxy)-1-oxoisoindolin-2-yl)piperidine-2,6-dione and pharmaceutically acceptable forms thereof | Chemistry; Metallurgy | 11 | Active |
| US9359364B2 | Pharmaceutical 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)-one | Chemistry; Metallurgy | 11 | Active |
| US9403829B2 | Pharmaceutical 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 use | Human Necessities | 10 | Active |
| US5625064A | Process for the preparation of triazolones | Chemistry; Metallurgy | 8 | Expired |
| US6958337B2 | Crystalline antifungal polymorph | Chemistry; Metallurgy | 8 | Expired |
| US8802685B2 | Solid forms of 3-(5-amino-2-methyl-4-oxo-4H-quinazolin-3-yl)-piperidine-2,6-dione, and their pharmaceutical compositions and uses | Human Necessities | 7 | Active |
| US8686135B2 | Methods of synthesis and purification of heteroaryl compounds | Chemistry; Metallurgy | 7 | Active |
| US9067912B2 | Synthesis of 3-(5-amino-2-methyl-4-oxoquinazolin-3(4H)-yl)piperidine-2,8-dione | Chemistry; Metallurgy | 5 | Active |
| US6713481B1 | Crystalline antifungal polymorph | Chemistry; Metallurgy | 4 | Expired |
| US9079900B2 | Methods of synthesis and purification of heteroaryl compounds | Chemistry; Metallurgy | 4 | Active |
| US10220050B2 | Isotopologues of 5-azacytidine | Human Necessities | 3 | Active |
| US9126906B2 | Asymmetric synthetic processes for the preparation of aminosulfone compounds | Chemistry; Metallurgy | 3 | Active |
| US9751853B2 | Solid forms of 3-(5-amino-2-methyl-4-oxo-4H-quinazolin-3-yl)-piperidine-2,6-dione, and their pharmaceutical compositions and uses | Human Necessities | 3 | Active |
| US10463683B2 | Isotopologues of 5-azacytidine | Human Necessities | 3 | Active |
| US9249121B2 | Solid forms of 3-(5-amino-2-methyl-4-oxo-4H-quinazolin-3-yl)-piperidine-2,6-dione, and their pharmaceutical compositions and uses | Human Necessities | 2 | Active |
| US10646503B2 | Isotopologues of 5-azacytidine | Human Necessities | 2 | Active |
| US9682952B2 | Isotopologues of 3-(5-amino-2-methyl-4-oxoquinazolin-3(4H)-yl) piperidine-2-6-dione and methods of preparation thereof | Human Necessities | 2 | Active |
| US6936718B2 | Preparation of rotamer mixtures of pharmaceutical salts | Human Necessities | 2 | Expired |
| US6992189B2 | Synthesis of piperidine and piperazine compounds as CCR5 antagonists | Chemistry; Metallurgy | 1 | Expired |
| US9975872B2 | Processes for the preparation of (s)-3-(4-((4-(morpholinomethyl)benzyl)oxy)-1-oxoisoindolin-2-yl)piperidine-2,6-dione and pharmaceutically acceptable forms thereof | Chemistry; Metallurgy | 1 | Active |
| US9303014B2 | Synthesis of 3-(5-amino-2-methyl-4-oxoquinazolin-3(4H)-yl)piperidine-2,6-dione | Chemistry; Metallurgy | 1 | Active |
| US9969713B2 | Solid forms of 3-(5-amino-2-methyl-4-oxo-4H-quinazolin-3-yl)-piperidine-2,6-dione, and their pharmaceutical compositions and uses | Human Necessities | 1 | Active |
| US9266858B2 | Synthesis of 3-(5-amino-2-methyl-4-oxoquinazolin-3(4H)-yl)piperidine-2,6-dione | Chemistry; Metallurgy | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.