Wednesday, July 8, 2026

Patent intelligence · US

US 8575185

Compositions, synthesis, and methods of utilizing quinazolinedione derivatives

granted A61KA61K31/538A61PA61P25/00
Status granted
Linked drugs 1
Pipeline programs 6
Years to expiry 7
Applicant portfolio 28
Patent details — US 8575185
Jurisdiction
US
Status
granted
Grant date
Nov 5, 2013
Expiration
Oct 31, 2033
Claims
25
CPC classes
A61K, A61K31/538, A61P, A61P25/00
View on Google Patents ↗

Quick answer

US 8575185 (Compositions, synthesis, and methods of utilizing quinazolinedione derivatives) is held by REVIVA PHARMACEUTICALS, INC.. Status: granted. Granted Nov 5, 2013. Expires Oct 31, 2033 (7 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
25
CPC classes
A61K, A61K31/538, A61P, A61P25/00, A61P25/18, A61P25/24

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Frequently asked questions

What is US patent 8575185?

US 8575185 (Compositions, synthesis, and methods of utilizing quinazolinedione derivatives) is held by REVIVA PHARMACEUTICALS, INC.. Status: granted. Granted Nov 5, 2013. Expires Oct 31, 2033 (7 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 8575185?

REVIVA PHARMACEUTICALS, INC. is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 28 pharmaceutical patents for this assignee.

When does US 8575185 expire?

Our index shows an expiration date of Oct 31, 2033 (7 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.