Wednesday, July 8, 2026

Patent intelligence · US

US 11939343

Sting agonist compounds and methods of use

granted A61PA61P1/16A61P3/04A61P3/06
Status granted
Linked drugs 1
Pipeline programs 6
Years to expiry 18
Applicant portfolio 136
Patent details — US 11939343
Jurisdiction
US
Status
granted
Grant date
Mar 26, 2024
Expiration
Mar 21, 2044
Claims
11
CPC classes
A61P, A61P1/16, A61P3/04, A61P3/06
View on Google Patents ↗

Quick answer

US 11939343 (Sting agonist compounds and methods of use) is held by Mersana Therapeutics, Inc.. Status: granted. Granted Mar 26, 2024. Expires Mar 21, 2044 (18 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
11
CPC classes
A61P, A61P1/16, A61P3/04, A61P3/06, A61P31/12, A61P35/00

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Frequently asked questions

What is US patent 11939343?

US 11939343 (Sting agonist compounds and methods of use) is held by Mersana Therapeutics, Inc.. Status: granted. Granted Mar 26, 2024. Expires Mar 21, 2044 (18 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 11939343?

Mersana Therapeutics, Inc. is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 136 pharmaceutical patents for this assignee.

When does US 11939343 expire?

Our index shows an expiration date of Mar 21, 2044 (18 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.