Thursday, July 9, 2026

Patent intelligence · US

US 10980758

Dosage forms and therapeutic uses of L-4-chlorokynurenine

granted A61KA61K31/198A61K9/0053A61P
Status granted
Linked drugs 3
Pipeline programs 6
Years to expiry 15
Applicant portfolio 6
Patent details — US 10980758
Jurisdiction
US
Status
granted
Grant date
Apr 20, 2021
Expiration
Apr 15, 2041
Claims
6
CPC classes
A61K, A61K31/198, A61K9/0053, A61P
View on Google Patents ↗

Quick answer

US 10980758 (Dosage forms and therapeutic uses of L-4-chlorokynurenine) is held by VISTAGEN THERAPUETICS, INC.. Status: granted. Granted Apr 20, 2021. Expires Apr 15, 2041 (15 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
6
CPC classes
A61K, A61K31/198, A61K9/0053, A61P, A61P25/14, A61P25/16

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Frequently asked questions

What is US patent 10980758?

US 10980758 (Dosage forms and therapeutic uses of L-4-chlorokynurenine) is held by VISTAGEN THERAPUETICS, INC.. Status: granted. Granted Apr 20, 2021. Expires Apr 15, 2041 (15 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 10980758?

VISTAGEN THERAPUETICS, INC. is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 6 pharmaceutical patents for this assignee.

When does US 10980758 expire?

Our index shows an expiration date of Apr 15, 2041 (15 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.