Rancho Cucamonga, CA, United States of America

Amphastar Pharmaceutcals, Inc.

Calculating rank
USPTO Granted Patents = 1

Forward Citations = 0

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4 inventors (with patents filed for the assignee):

goldMedal Jeffrey Ding (1 out of 4 patents)

silverMedal Aili Bo (1 out of 5 patents)

bronzeMedal Mary Ziping Luo (1 out of 18 patents)

4.  Jack Yongfeng Zhang (1 out of 25 patents)


1 patent:

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USPTO Data Jan 1 1976 - Nov 10 2026

1 Patents

#60 in Rancho Cucamonga, CA

#29,096 in California

#137,142 in US

Rancho Cucamonga, CA (US)
Rancho Cucamonga, CA, United States of America
Forward Citations = 0

4 inventors:

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

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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