Kwok Yin Tsang

This inventor holds 23 USPTO granted patents and 3 published patent applications, plus 2 CIPO patents and 5 EPO patents, primarily in Biologically Active Compounds. Top assignees: Nitto-Denko Corporation, Allergan, Inc., Allergan Sales, Inc.. Active years: 2000-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kwok Yin Tsang. Retrieved from https://idiyas.com/inventor/kwok-yin-tsang

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

USPTO Granted Patents = 23 (Patent Applications = 3)

% Patents Active = 65.2

CIPO Patents = 2 (Patent Applications = 1)

EPO Patents = 5 (Patent Applications = 11)

Average Co-Inventor Count = 5.7

ph-index = 6

Forward Citations = 131(Granted Patents)

Company Filing History:

13 out of 3,949

Nitto-Denko Corporation

Years Active: 2000-2025

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Areas of Expertise:

Fusogenic Compounds

Ionizable Compounds

RNA Modulation

Hydrophobic Drug Delivery

Polymer Conjugates

Cytochrome P450

Retinoid Receptor Antagonists

Endotoxin Reduction

Anti-Tumor Activity

Serum Glucose Reduction

Drug Delivery

Biologically Active Molecules

23 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12440445 - Fusogenic compounds for delivery of biologically active molecules (2025-10-14),

2. 12319643 - Ionizable compounds and compositions and uses thereof (2025-06-03),

3. 11413243 - Fusogenic compounds for delivery of biologically active molecules (2022-08-16),

4. 11384051 - Ionizable compounds and compositions and uses thereof (2022-07-12),

5. 10405749 - RNA agents for P21 gene modulation (2019-09-10),

6. 10167253 - Ionizable compounds and compositions and uses thereof (2019-01-01),

7. 10080737 - Polymer-based hydrotropes for hydrophobic drug delivery (2018-09-25),

8. 10023597 - RNA interference agents for p21 gene modulation (2018-07-17),

9. 9839694 - Reduction of endotoxins from polyanionic polymer conjugates (2017-12-12),

10. 9695206 - RNA interference agents for P21 gene modulation (2017-07-04),

11. 9636411 - Large scale process for preparing poly (glutamyl-glutamate) conjugates (2017-05-02),

12. 9295728 - Co-polymer conjugates (2016-03-29),

13. 9078926 - Polymer conjugates with a linker (2015-07-14),

14. 7638648 - Compounds having selective cytochrome P450RAI-1 or selective cytochrome P450RAI-2 inhibitory activity and methods of obtaining the same (2009-12-29),

15. 7476673 - [object Object] (2009-01-13),

Title: Kwok Yin Tsang: Innovator in Biopharmaceuticals

Introduction

Kwok Yin Tsang, based in Irvine, CA, is a notable inventor with an impressive portfolio of 21 patents primarily focused on biopharmaceutical innovations. His work significantly contributes to the development of cutting-edge therapeutic solutions aimed at improving human health and advancing medical technologies.

Latest Patents

Among his latest patents are two groundbreaking inventions:

1. **Fusogenic Compounds for Delivery of Biologically Active Molecules** - This invention relates to fusogenic compounds, along with their compositions and methods of use. These compounds are designed for creating nanoparticle compositions intended for biopharmaceuticals and therapeutics. They facilitate the incorporation and encapsulation of active agents, thereby enhancing the delivery and distribution to various cells, tissues, and organs.

2. **Ionizable Compounds and Compositions and Uses Thereof** - This invention includes ionizable compounds as well as their compositions and methods. Similar to his previous work, these compounds are pivotal for the development of nanoparticle compositions for biopharmaceutical applications, specifically targeting the encapsulation and delivery of active agents, such as nucleic acids, to intended biological sites.

Career Highlights

Kwok Yin Tsang has had a prominent career, significantly contributing to companies like Nitto-Denko Corporation and Allergan, Inc. His experiences in these organizations have allowed him to refine his expertise in developing innovative solutions within the biopharmaceutical sector, fostering advancements that could lead to more effective treatments and therapies.

Collaborations

Throughout his career, Tsang has collaborated with esteemed professionals in the field, including Roshantha A Chandraratna and Xiaoxia Liu. These collaborations have undoubtedly enhanced his research capabilities and contributed to the successful development of his inventions.

Conclusion

In summary, Kwok Yin Tsang stands out as a leading inventor in the domain of biopharmaceuticals, with a strong focus on innovative therapeutic solutions. His patents highlight his commitment to advancing medicine through the development of effective delivery systems for biologically active molecules. As the industry continues to evolve, Tsang's contributions will play a crucial role in shaping the future of medical treatments.

Profile summary based on public USPTO records.