Thursday, July 9, 2026

Patent intelligence · US

US 11298350

Subcutaneous delivery of polymer conjugates of therapeutics agents

granted A61KA61K31/381A61K31/4045A61K31/4462
Status granted
Linked drugs 1
Pipeline programs 6
Years to expiry 16
Applicant portfolio 25
Patent details — US 11298350
Jurisdiction
US
Status
granted
Grant date
Apr 12, 2022
Expiration
Apr 7, 2042
Claims
22
CPC classes
A61K, A61K31/381, A61K31/4045, A61K31/4462
View on Google Patents ↗

Quick answer

US 11298350 (Subcutaneous delivery of polymer conjugates of therapeutics agents) is held by Serina Therapeutics, Inc.. Status: granted. Granted Apr 12, 2022. Expires Apr 7, 2042 (16 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
22
CPC classes
A61K, A61K31/381, A61K31/4045, A61K31/4462, A61K31/4535, A61K31/4745

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Frequently asked questions

What is US patent 11298350?

US 11298350 (Subcutaneous delivery of polymer conjugates of therapeutics agents) is held by Serina Therapeutics, Inc.. Status: granted. Granted Apr 12, 2022. Expires Apr 7, 2042 (16 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 11298350?

Serina Therapeutics, Inc. is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 25 pharmaceutical patents for this assignee.

When does US 11298350 expire?

Our index shows an expiration date of Apr 7, 2042 (16 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.