Wednesday, July 8, 2026

Patent intelligence · US

US 11324813

Indoleamine 2,3-dioxygenase based immunotherapy

granted A61KA61K2039/5158A61K2039/55566A61K2039/572
Status granted
Linked drugs 2
Pipeline programs 6
Years to expiry 16
Applicant portfolio 21
Related coverage 1
Patent details — US 11324813

Quick answer

US 11324813 (Indoleamine 2,3-dioxygenase based immunotherapy) is held by IO Biotech ApS. Status: granted. Granted May 10, 2022. Expires May 5, 2042 (16 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Applicant
IO Biotech ApS
Grant date
Expiration
Claims
18
CPC classes
A61K, A61K2039/5158, A61K2039/55566, A61K2039/572, A61K38/193, A61K38/2013

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Related coverage

Frequently asked questions

What is US patent 11324813?

US 11324813 (Indoleamine 2,3-dioxygenase based immunotherapy) is held by IO Biotech ApS. Status: granted. Granted May 10, 2022. Expires May 5, 2042 (16 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 11324813?

IO Biotech ApS is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 21 pharmaceutical patents for this assignee.

When does US 11324813 expire?

Our index shows an expiration date of May 5, 2042 (16 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.