% Expired Patents = 50.0

Forward Citations = 81

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4 inventors (with patents filed for the assignee):

Andrew Xian Chen (3 out of 37 patents)

Mannarsamy Balasubramanian (1 out of 16 patents)

Stewart V Smith (1 out of 3 patents)

4. R Martin Emanuele (1 out of 29 patents)

4 patents: Sort by Forward Citations

1. 9403941 - Poloxamer composition free of long circulating material and methods for production and uses thereof (2016-08-02),

2. 8557861 - Low oil emulsion compositions for delivering taxoids and other insoluble drugs (2013-10-15),

3. 8470873 - Vitamin E succinate stabilized pharmaceutical compositions, methods for the preparation and the use thereof (2013-06-25),

4. 8470346 - Anti-viral pharmaceutical compositions (2013-06-25),

Company Overview

Mast Therapeutics, Inc. is a clinical-stage biopharmaceutical company focused on developing therapies for serious or life-threatening diseases. The company’s lead product candidate is AIR001, a sodium nitrite solution for inhalation, which is being developed for the treatment of pulmonary arterial hypertension and heart failure with preserved ejection fraction.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

4 Patents

#1,006 in San Diego, CA

#14,041 in California

#60,597 in US

San Diego, CA, United States of America

Mast Therapeutics, Inc.

Forward Citations = 81

4 inventors:

Andrew Xian Chen (3 out of 37 patents)

Mannarsamy Balasubramanian (1 out of 16 patents)

Stewart V Smith (1 out of 3 patents)

4. R Martin Emanuele (1 out of 29 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Mast Therapeutics, Inc.. Retrieved from https://idiyas.com/company/mast-therapeutics

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]