Wednesday, July 8, 2026

Patent intelligence · US

US 12391642

Tetrahydro-1H-cyclopenta[cd]indene derivatives as hypoxia inducible factor-2(alpha) inhibitors

granted A61KA61K45/06A61PA61P35/00
Status granted
Linked drugs 3
Pipeline programs 6
Years to expiry 19
Applicant portfolio 69
Patent details — US 12391642
Jurisdiction
US
Status
granted
Grant date
Aug 19, 2025
Expiration
Aug 14, 2045
Claims
19
CPC classes
A61K, A61K45/06, A61P, A61P35/00
View on Google Patents ↗

Quick answer

US 12391642 (Tetrahydro-1H-cyclopenta[cd]indene derivatives as hypoxia inducible factor-2(alpha) inhibitors) is held by NIKANG THERAPEUTICS, INC.. Status: granted. Granted Aug 19, 2025. Expires Aug 14, 2045 (19 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
19
CPC classes
A61K, A61K45/06, A61P, A61P35/00

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Frequently asked questions

What is US patent 12391642?

US 12391642 (Tetrahydro-1H-cyclopenta[cd]indene derivatives as hypoxia inducible factor-2(alpha) inhibitors) is held by NIKANG THERAPEUTICS, INC.. Status: granted. Granted Aug 19, 2025. Expires Aug 14, 2045 (19 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 12391642?

NIKANG THERAPEUTICS, INC. is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 69 pharmaceutical patents for this assignee.

When does US 12391642 expire?

Our index shows an expiration date of Aug 14, 2045 (19 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.