William W Leong

This inventor holds 29 USPTO granted patents and 9 published patent applications, plus 2 CIPO patents and 8 EPO patents, primarily in Pharmaceutical Chemistry. Top assignees: Celgene Corporation, Schering Corporation, Gilgamesh Pharmaceuticals, Inc.. Active years: 1996-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: William W Leong. Retrieved from https://idiyas.com/inventor/william-w-leong-o80scwxa

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Calculating rank

USPTO Granted Patents = 29 (Patent Applications = 9)

% Patents Active = 55.2

CIPO Patents = 2 (Patent Applications = 2)

EPO Patents = 8 (Patent Applications = 9)

Average Co-Inventor Count = 4.4

ph-index = 5

Forward Citations = 88(Granted Patents)

Company Filing History:

Gilgamesh Pharmaceuticals, Inc.

patents

4. 1 out of 2,405

Merck Sharp + Dohme Corp.

patents

5. 1 out of 40

Newron Pharmaceuticals S.p.a.

patents

6. 1 out of 834,570

Other

patents

Years Active: 1996-2025

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Areas of Expertise:

Pharmaceutical Salts

Crystalline Forms

Asymmetric Synthesis

Aminosulfone Compounds

CCR5 Receptor Antagonists

Hydrazides

5-Azacytidine

Piperidine Compounds

Fumarate Salts

Triazolones

Solid Forms

Polymorph

29 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12291495 - Process for the production of substituted 2-[2-(phenyl)ethylamino] alkaneamide derivatives (2025-05-06),

2. 12180158 - Crystalline fumarate salts of n-ethyl-2-(5-fluoro-1H-indol-3-yl)-n-methylethan-1-amine (2024-12-31),

3. 12157722 - Crystalline hydrochloride salts of N-ethyl-2-(5-fluoro-1H-indol-3-yl)-N-methylethan-1-amine (2024-12-03),

4. 12129234 - Crystalline salts of N-ethyl-(5-fluoro-1H-indol-3-yl)-N-methylethan-1-amine (2024-10-29),

5. 10646503 - Isotopologues of 5-azacytidine (2020-05-12),

6. 10463683 - Isotopologues of 5-azacytidine (2019-11-05),

7. 10220050 - Isotopologues of 5-azacytidine (2019-03-05),

8. 9975872 - 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 (2018-05-22),

9. 9969713 - Solid forms of 3-(5-amino-2-methyl-4-oxo-4H-quinazolin-3-yl)-piperidine-2,6-dione, and their pharmaceutical compositions and uses (2018-05-15),

10. 9751853 - Solid forms of 3-(5-amino-2-methyl-4-oxo-4H-quinazolin-3-yl)-piperidine-2,6-dione, and their pharmaceutical compositions and uses (2017-09-05),

11. 9682952 - [object Object] (2017-06-20),

12. 9309220 - 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 (2016-04-12),

13. 9303014 - [object Object] (2016-04-05),

14. 9266858 - [object Object] (2016-02-23),

15. 9249121 - Solid forms of 3-(5-amino-2-methyl-4-oxo-4H-quinazolin-3-yl)-piperidine-2,6-dione, and their pharmaceutical compositions and uses (2016-02-02),

Title: Innovations and Contributions of William W. Leong in Pharmaceutical Patents

Introduction

William W. Leong, based in Westfield, NJ, is a prominent inventor with an impressive portfolio comprising 25 patents. His work primarily focuses on pharmaceutical compositions, particularly in the realm of cytidine analogs used for treating various diseases and disorders.

Latest Patents

Among his latest innovations is a patent for isotopologues of 5-azacytidine. This groundbreaking disclosure provides pharmaceutical compositions intended for oral administration, which release the cytidine analog substantially in the stomach. The methods outlined in these patents aim to enhance the treatment efficacy of associated diseases and disorders through optimized oral formulations.

Career Highlights

William has made significant strides in his career, contributing to major pharmaceutical companies such as Celgene Corporation and Schering Corporation. His experience at these renowned organizations has equipped him with the expertise necessary to advance his research and innovation within the pharmaceutical field.

Collaborations

Throughout his career, William has collaborated with several esteemed colleagues, including Benjamin M. Cohen and Hon-Wah Man. Their collective efforts have fostered an environment of innovation, leading to the development of new pharmaceutical therapies and enhancing patient care.

Conclusion

William W. Leong's contributions to the field of pharmaceuticals through his numerous patents and collaborative projects highlight his significant impact on medical sciences. His innovations in cytidine analogs not only establish him as a leading inventor in the industry but also pave the way for improved therapeutic strategies in treating complex diseases.

Profile summary based on public USPTO records.