Thursday, July 9, 2026

Patent intelligence · US

US 8143445

HDAC inhibitors

granted A61PA61P1/16A61P29/00A61P3/10
Status granted
Linked drugs 2
Pipeline programs 6
Years to expiry 6
Applicant portfolio 26
Patent details — US 8143445
Jurisdiction
US
Status
granted
Grant date
Mar 27, 2012
Expiration
Mar 22, 2032
Claims
49
CPC classes
A61P, A61P1/16, A61P29/00, A61P3/10
View on Google Patents ↗

Quick answer

US 8143445 (HDAC inhibitors) is held by Lixte Biotechnology, Inc.. Status: granted. Granted Mar 27, 2012. Expires Mar 22, 2032 (6 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
49
CPC classes
A61P, A61P1/16, A61P29/00, A61P3/10, A61P31/18, A61P33/02

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Frequently asked questions

What is US patent 8143445?

US 8143445 (HDAC inhibitors) is held by Lixte Biotechnology, Inc.. Status: granted. Granted Mar 27, 2012. Expires Mar 22, 2032 (6 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 8143445?

Lixte Biotechnology, Inc. is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 26 pharmaceutical patents for this assignee.

When does US 8143445 expire?

Our index shows an expiration date of Mar 22, 2032 (6 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.