Wednesday, July 8, 2026

Patent intelligence · US

US 11583540

Istaroxime-containing intravenous formulation for the treatment of acute heart failure (AHF)

granted A61KA61K31/5685A61K45/06A61K9/009
Status granted
Linked drugs 3
Pipeline programs 6
Years to expiry 17
Applicant portfolio 4
Patent details — US 11583540
Jurisdiction
US
Status
granted
Grant date
Feb 21, 2023
Expiration
Feb 16, 2043
Claims
22
CPC classes
A61K, A61K31/5685, A61K45/06, A61K9/009
View on Google Patents ↗

Quick answer

US 11583540 (Istaroxime-containing intravenous formulation for the treatment of acute heart failure (AHF)) is held by Windtree Therapeutics, Inc.. Status: granted. Granted Feb 21, 2023. Expires Feb 16, 2043 (17 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
22
CPC classes
A61K, A61K31/5685, A61K45/06, A61K9/009, A61P, A61P9/00

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Frequently asked questions

What is US patent 11583540?

US 11583540 (Istaroxime-containing intravenous formulation for the treatment of acute heart failure (AHF)) is held by Windtree Therapeutics, Inc.. Status: granted. Granted Feb 21, 2023. Expires Feb 16, 2043 (17 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 11583540?

Windtree Therapeutics, Inc. is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 4 pharmaceutical patents for this assignee.

When does US 11583540 expire?

Our index shows an expiration date of Feb 16, 2043 (17 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.