Thursday, July 9, 2026

Patent intelligence · US

US 8258142

Substituted 8-[6-amino-3-pyridyl]xanthines

granted A61PA61P1/12A61P11/00A61P11/06
Status granted
Linked drugs 2
Pipeline programs 6
Years to expiry 6
Applicant portfolio 7
Patent details — US 8258142
Jurisdiction
US
Status
granted
Grant date
Sep 4, 2012
Expiration
Aug 30, 2032
Claims
5
CPC classes
A61P, A61P1/12, A61P11/00, A61P11/06
View on Google Patents ↗

Quick answer

US 8258142 (Substituted 8-[6-amino-3-pyridyl]xanthines) is held by Dogwood Pharmaceuticals, Inc.. Status: granted. Granted Sep 4, 2012. Expires Aug 30, 2032 (6 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
5
CPC classes
A61P, A61P1/12, A61P11/00, A61P11/06, A61P27/02, A61P3/10

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Frequently asked questions

What is US patent 8258142?

US 8258142 (Substituted 8-[6-amino-3-pyridyl]xanthines) is held by Dogwood Pharmaceuticals, Inc.. Status: granted. Granted Sep 4, 2012. Expires Aug 30, 2032 (6 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 8258142?

Dogwood Pharmaceuticals, Inc. is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 7 pharmaceutical patents for this assignee.

When does US 8258142 expire?

Our index shows an expiration date of Aug 30, 2032 (6 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.