Wednesday, July 8, 2026

Patent intelligence · US

US 11891420

Molecules for organelle-specific protein delivery

granted A61KA61K38/00A61K47/64A61P
Status granted
Linked drugs 2
Pipeline programs 6
Years to expiry 18
Applicant portfolio 5
Patent details — US 11891420
Jurisdiction
US
Status
granted
Grant date
Feb 6, 2024
Expiration
Feb 1, 2044
Claims
26
CPC classes
A61K, A61K38/00, A61K47/64, A61P
View on Google Patents ↗

Quick answer

US 11891420 (Molecules for organelle-specific protein delivery) is held by Larimar Therapeutics, Inc.. Status: granted. Granted Feb 6, 2024. Expires Feb 1, 2044 (18 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
26
CPC classes
A61K, A61K38/00, A61K47/64, A61P, A61P25/16, A61P25/28

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Frequently asked questions

What is US patent 11891420?

US 11891420 (Molecules for organelle-specific protein delivery) is held by Larimar Therapeutics, Inc.. Status: granted. Granted Feb 6, 2024. Expires Feb 1, 2044 (18 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 11891420?

Larimar Therapeutics, Inc. is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 5 pharmaceutical patents for this assignee.

When does US 11891420 expire?

Our index shows an expiration date of Feb 1, 2044 (18 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.