Thursday, July 9, 2026

pharma · Social Anxiety Disorder · Drug Drug Interaction · VTGN

Vistagen Therapeutics

Vistagen Therapeutics patent portfolio — 6 USPTO pharmaceutical patents (A61K/A61P) with grant dates, status, and loss-of-exclusivity filters.

Cambridge, USA HQ
7 Employees
Public company Type
VTGN · NYSE Ticker
Company details
Status
Public
HQ
Cambridge, USA
Employees
7
Programs
10
Drugs
3
Patents
6
Intelligence · Patents

Vistagen Therapeutics patents

6 pharmaceutical patents indexed for Vistagen Therapeutics. 0 expire within 24 months.

Vistagen Therapeutics has 6 pharmaceutical patents in our USPTO PatentsView index (A61K/A61P). 0 expire within 24 months — use filters for patent-cliff planning.

Patent portfolio

  1. US 12036198

    Dosage forms and therapeutic uses of L-4-chlorokynurenine

    Expires Mon Jul 11 2044 00:00:00 GMT+0000 (Coordinated Universal Time)

    granted
  2. US 10980758

    Dosage forms and therapeutic uses of L-4-chlorokynurenine

    Expires Mon Apr 15 2041 00:00:00 GMT+0000 (Coordinated Universal Time)

    granted
  3. US 10632091

    Dosage forms and therapeutic uses of L-4-chlorokynurenine

    Expires Mon Apr 23 2040 00:00:00 GMT+0000 (Coordinated Universal Time)

    granted
  4. US 10617663

    Dosage forms and therapeutic uses of L-4-chlorokynurenine

    Expires Mon Apr 09 2040 00:00:00 GMT+0000 (Coordinated Universal Time)

    granted
  5. US 9993453

    Dosage forms and therapeutic uses L-4-chlorokynurenine

    Expires Mon Jun 07 2038 00:00:00 GMT+0000 (Coordinated Universal Time)

    granted
  6. US 9993450

    Dosage forms and therapeutic uses of L-4-chlorokynurenine

    Expires Mon Jun 07 2038 00:00:00 GMT+0000 (Coordinated Universal Time)

    granted

Frequently asked questions

How many patents does Vistagen Therapeutics have?

6 published patents match the current filter (all indexed). The full portfolio is indexed from USPTO PatentsView (A61K/A61P).

When do Vistagen Therapeutics patents expire?

0 patents in the full portfolio expire within 24 months. Use the expiring filters above or open individual patent pages for grant and expiration dates.