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For the Inventor, By the Inventor

Rancho Cucamonga, CA, United States of America

Amphastar Pharmaceuticals, Inc.


USPTO Granted Patents = 22



Trademarks = 17

Forward Citations = 178

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39 inventors (with patents filed for the assignee):

goldMedal Jack Yongfeng Zhang (16 out of 22 patents)

silverMedal Mary Ziping Luo (9 out of 17 patents)

bronzeMedal Mary Zi-Ping Luo (5 out of 5 patents)

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

5.  Aili Bo (4 out of 5 patents)

6.  Jeffrey Ding (3 out of 4 patents)

7.  Jie Fei Ding (3 out of 3 patents)

8.  Yonggang Xu (2 out of 5 patents)

9.  Song Chen (2 out of 12 patents)

10.  Haoning Zhang (2 out of 12 patents)

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

12.  Rong Zhou (2 out of 2 patents)

13.  Mary Zi-ping Luo (2 out of 2 patents)

14.  Ying Wang (2 out of 2 patents)

15.  Ray Lameng Lei (2 out of 2 patents)


22 patents:

1. 12496272 - Stable epinephrine suspension formulation for inhalation with HFO propellant (2025-12-16),
2. 12383516 - Albuterol aerosol suspension formulation for oral inhalation with high amount of green propellant hydrofluoroolefin (HFO) and free of co-solvent (2025-08-12),
3. 12370241 - Nasal powder formulation for treatment of hypoglycemia (2025-07-29),
4. 12226456 - Nasal powder formulation for treatment of hypoglycemia (2025-02-18),
5. 11938089 - Medication delivery systems and methods (2024-03-26),
6. 11726049 - Small angle x-ray scattering methods for characterizing the iron core of iron carbohydrate colloid drug products (2023-08-15),
7. 11524987 - Highly purified recombinant human insulin (RHI) API and methods of producing the same (2022-12-13),
8. 10406210 - High-purity inhalable particles of insulin and insulin analogues, and high-efficiency methods of manufacturing the same (2019-09-10),
9. 10322168 - High-purity inhalable particles of insulin and insulin analogues, and high-efficiency methods of manufacturing the same (2019-06-18),
10. 10287249 - Methods of resolving racemic mixture to obtain (−)-huperzine A (2019-05-14),
11. 10258573 - Micronized insulin and micronized insulin analogues prepared under acidic conditions, and methods of manufacturing the same under acidic conditions (2019-04-16),
12. 9873712 - Method of purifying idraparinux sodium (2018-01-23),
13. 8974801 - Long term sustained release pharmaceutical composition containing aqueous suspension of bisphosphonate (2015-03-10),
14. 8367734 - Stable epinephrine suspension formulation with high inhalation delivery efficiency (2013-02-05),
15. 7468394 - Sterile pharmaceutical composition and process for a solution of propofol emulsion having microbial growth retardation (2008-12-23),
Amphastar Pharmaceuticals, Inc. is a specialty pharmaceutical company that focuses on the development, manufacturing, and marketing of generic and proprietary injectable and inhalation products. They are dedicated to providing high-quality, cost-effective solutions to meet various healthcare needs. With a diverse product portfolio, Amphastar aims to improve patient outcomes and enhance the overall healthcare system.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 30 2025

22 Patents

#7 in Rancho Cucamonga, CA

#3,456 in California

#14,534 in US

#27,908 in the World

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Rancho Cucamonga, CA, United States of America

Amphastar Pharmaceuticals, Inc.

Forward Citations = 178

39 inventors:

goldMedal Jack Yongfeng Zhang (16 out of 22 patents)

silverMedal Mary Ziping Luo (9 out of 17 patents)

bronzeMedal Mary Zi-Ping Luo (5 out of 5 patents)

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

5.  Aili Bo (4 out of 5 patents)

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