Wednesday, July 8, 2026

Patent intelligence · US

US 11718655

Masked interleukin-12 polypeptides

granted A61KA61K38/00A61PA61P35/00
Status granted
Linked drugs 1
Pipeline programs 6
Years to expiry 17
Applicant portfolio 7
Patent details — US 11718655
Jurisdiction
US
Status
granted
Grant date
Aug 8, 2023
Expiration
Aug 3, 2043
Claims
9
CPC classes
A61K, A61K38/00, A61P, A61P35/00
View on Google Patents ↗

Quick answer

US 11718655 (Masked interleukin-12 polypeptides) is held by Xilio Development, Inc.. Status: granted. Granted Aug 8, 2023. Expires Aug 3, 2043 (17 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
9
CPC classes
A61K, A61K38/00, A61P, A61P35/00

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Frequently asked questions

What is US patent 11718655?

US 11718655 (Masked interleukin-12 polypeptides) is held by Xilio Development, Inc.. Status: granted. Granted Aug 8, 2023. Expires Aug 3, 2043 (17 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 11718655?

Xilio Development, Inc. is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 7 pharmaceutical patents for this assignee.

When does US 11718655 expire?

Our index shows an expiration date of Aug 3, 2043 (17 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.