For the Inventor, By the Inventor

Enter assignee name

Rancho Cucamonga, CA, United States of America

Amphastar Pharmaceuticals, Inc.

Calculating rank

USPTO Granted Patents = 26

% Expired Patents = 7.7

CIPO Patents = 3

EPO Patents = 5

Trademarks = 13

Forward Citations = 191

Loading Chart...

Loading Chart...

50 inventors (with patents filed for the assignee):

Jack Yongfeng Zhang (19 out of 25 patents)

Mary Ziping Luo (10 out of 18 patents)

Mary Zi-Ping Luo (6 out of 6 patents)

4. Frank Zhishi Xia (5 out of 9 patents)

5. Aili Bo (4 out of 5 patents)

6. Jie Fei Ding (4 out of 4 patents)

7. Rong Zhou (4 out of 4 patents)

8. Jeffrey Ding (3 out of 4 patents)

9. Mary Zi-ping Luo (3 out of 3 patents)

10. Ying Wang (3 out of 3 patents)

11. Ray Lameng Lei (3 out of 3 patents)

12. Yonggang Xu (2 out of 5 patents)

13. Song Chen (2 out of 12 patents)

14. Haoning Zhang (2 out of 12 patents)

15. Sankaram B Mantripragada (2 out of 7 patents)

Core Competencies:

Albuterol

Epinephrine

Insulin

Formulations

Aerosol

Nasal Powder

Peptide

Stability

Drug Delivery

Microbial Inhibition

Homogenizer

Bulk Filling

26 patents: Sort by Forward Citations

1. 12779144 - Intranasal delivery device for delivering a medication solution (2026-11-03),

2. 12642779 - Albuterol aerosol suspension formulation for oral inhalation with high amount of green propellant hydrofluoroolefin (HFO) and free of co-solvent (2026-06-02),

3. 12564562 - Injectable epinephrine formulations demonstrating stability over time (2026-03-03),

4. 12508229 - METHOD FOR PREPARING STABLE PEPTIDE FORMULATIONS (2025-12-30),

5. 12496272 - Stable epinephrine suspension formulation for inhalation with HFO propellant (2025-12-16),

6. 12383516 - Albuterol aerosol suspension formulation for oral inhalation with high amount of green propellant hydrofluoroolefin (HFO) and free of co-solvent (2025-08-12),

7. 12370241 - Nasal powder formulation for treatment of hypoglycemia (2025-07-29),

8. 12226456 - Nasal powder formulation for treatment of hypoglycemia (2025-02-18),

9. 11938089 - Medication delivery systems and methods (2024-03-26),

10. 11726049 - Small angle x-ray scattering methods for characterizing the iron core of iron carbohydrate colloid drug products (2023-08-15),

11. 11524987 - Highly purified recombinant human insulin (RHI) API and methods of producing the same (2022-12-13),

12. 10406210 - High-purity inhalable particles of insulin and insulin analogues, and high-efficiency methods of manufacturing the same (2019-09-10),

13. 10322168 - High-purity inhalable particles of insulin and insulin analogues, and high-efficiency methods of manufacturing the same (2019-06-18),

14. 10287249 - Methods of resolving racemic mixture to obtain (−)-huperzine A (2019-05-14),

15. 10258573 - Micronized insulin and micronized insulin analogues prepared under acidic conditions, and methods of manufacturing the same under acidic conditions (2019-04-16),

Company Overview

Amphastar Pharmaceuticals, Inc. is a biopharmaceutical company based in Rancho Cucamonga, California, specializing in the development, manufacture, and commercialization of injectable and inhalation pharmaceutical products. The company focuses on a range of therapeutic areas, including diabetes, cardiovascular diseases, and anti-infectives, leveraging advanced technologies to enhance drug delivery and efficacy. Amphastar is committed to improving patient outcomes through innovative solutions and high-quality pharmaceuticals.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Nov 10 2026

26 Patents

#7 in Rancho Cucamonga, CA

#3,048 in California

#12,888 in US

#24,889 in the World

Rancho Cucamonga, CA, United States of America

Amphastar Pharmaceuticals, Inc.

Forward Citations = 191

50 inventors:

Jack Yongfeng Zhang (19 out of 25 patents)

Mary Ziping Luo (10 out of 18 patents)

Mary Zi-Ping Luo (6 out of 6 patents)

4. Frank Zhishi Xia (5 out of 9 patents)

5. Aili Bo (4 out of 5 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Amphastar Pharmaceuticals, Inc.. Retrieved from https://idiyas.com/company/amphastar-pharmaceuticals

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]

Loading…