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Shanghai, China

Cathay Biotech Inc.

USPTO Granted Patents = 41

EPO Patents = 15

Trademarks = 3

Forward Citations = 6

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28 inventors (with patents filed for the assignee):

Xiucai Liu (41 out of 50 patents)

Howard Chou (20 out of 22 patents)

Chen Yang (15 out of 18 patents)

4. Bingbing Qin (12 out of 19 patents)

5. Min Xu (10 out of 63 patents)

6. Naiqiang Li (9 out of 18 patents)

7. Yufeng Yang (8 out of 8 patents)

8. Wenbo Liu (7 out of 7 patents)

9. Ling Chen (7 out of 35 patents)

10. Charlie Liu (5 out of 13 patents)

11. Wenqiang Lu (4 out of 4 patents)

12. Shuhua Zhang (3 out of 3 patents)

13. Lijun Yu (3 out of 3 patents)

14. Shanshi Guo (2 out of 2 patents)

15. Benliang Hou (2 out of 2 patents)

Core Competencies:

High Temperature-Resistant Polyamide

Long Chain Dicarboxylic Acids

Microbial Fermentation

Lysine Decarboxylase Enzymes

Solid-Solid Separation Process

Directed Evolution

Amino Acid Production

Polypeptide Expression

Nylon Salt

Cadaverine Production

1,5-Pentanediamine Purification

Carbohydrate Binding Modules

41 patents: Sort by Forward Citations

1. 12497486 - Polyamide 5X fiber, preparation method thereof, and use thereof (2025-12-16),

2. 12441839 - Method for producing high temperature-resistant polyamide, high temperature-resistant polyamide and use thereof (2025-10-14),

3. 12359351 - Polyamide 5X staple fiber (2025-07-15),

4. 12331282 - Strain for producing long-chain dicarboxylic acids and fermentation method therefor (2025-06-17),

5. 12325872 - Method of improving acid decarboxylase activity in vitro under alkaline pH (2025-06-10),

6. 12030848 - Solid-solid separation process for long chain dicarboxylic acids (2024-07-09),

7. 12018311 - Long chain dibasic acid with low content of long chain dibasic acid impurity of shorter carbon-chain and preparation method thereof (2024-06-25),

8. 12017182 - Method and system for refining long chain dicarboxylic acid (2024-06-25),

9. 11999689 - Method and system for extracting long chain dicarboxylic acid (2024-06-04),

10. 11806670 - Method and system for extracting long chain dicarboxylic acid (2023-11-07),

11. 11802298 - Decanedioic acid produced by microbial fermentation process and preparation method thereof (2023-10-31),

12. 11781163 - Reducing the accumulation of imines/enamines for the production of amino acids or amino acid-derived products (2023-10-10),

13. 11753629 - Directed evolution of CYP52A12 gene and its use in dicarboxylic acid production (2023-09-12),

14. 11512302 - Modifications to lysine decarboxylase enzymes (2022-11-29),

15. 11485986 - Cells and methods for production of lysine and lysine-derived products (2022-11-01),

Cathay Biotech Inc. is a leading biotechnology company that specializes in research, development, and production of innovative pharmaceutical and healthcare products. With a strong focus on biopharmaceuticals, our team of dedicated scientists and researchers strive to discover and create breakthrough therapies to improve human health and well-being. Our state-of-the-art facilities, cutting-edge technology, and stringent quality control ensure the delivery of safe and effective products to our global consumers. Visit our website to learn more about our latest advancements in the field of biotechnology.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

41 Patents

#73 in Shanghai

#703 in China

#16,217 in the World

Shanghai, China

Cathay Biotech Inc.

Forward Citations = 6

28 inventors:

Xiucai Liu (41 out of 50 patents)

Howard Chou (20 out of 22 patents)

Chen Yang (15 out of 18 patents)

4. Bingbing Qin (12 out of 19 patents)

5. Min Xu (10 out of 63 patents)

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