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Shanghai, China

Cathay Biotech Inc.

USPTO Granted Patents = 41

EPO Patents = 16

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 69 patents)

6. Naiqiang Li (9 out of 18 patents)

7. Yufeng Yang (8 out of 9 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 4 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:

Polyamide Fiber

Dicarboxylic Acid

Fermentation Method

Lysine Decarboxylase

Microbial Fermentation

Separation Process

Amino Acids

Polypeptides

High Temperature-Resistant

Decanedioic Acid

Modification

Cadaverine Production

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),

Company Overview

Cathay Biotech Inc., headquartered in Shanghai, specializes in advanced biotechnological solutions, focusing on high temperature-resistant polyamide and long chain dicarboxylic acids. The company leverages microbial fermentation and innovative enzymatic processes, including lysine decarboxylase enzymes, to enhance amino acid production and polypeptide expression. With a commitment to sustainability, Cathay Biotech employs directed evolution techniques and solid-solid separation processes, positioning itself as a leader in the development of eco-friendly materials and bioproducts.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

41 Patents

#80 in Shanghai

#776 in China

#16,706 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 69 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Cathay Biotech Inc.. Retrieved from https://idiyas.com/company/cathay-biotech

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

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]

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