Wednesday, July 8, 2026

Patent intelligence · US

US 8420650

Dihydropyridophthalazinone inhibitors of poly(ADP-ribose)polymerase (PARP)

granted A61KA61K31/282A61K31/4745A61K31/495
Status granted
Linked drugs 3
Pipeline programs 6
Years to expiry 7
Applicant portfolio 175
Patent details — US 8420650
Jurisdiction
US
Status
granted
Grant date
Apr 16, 2013
Expiration
Apr 11, 2033
Claims
15
CPC classes
A61K, A61K31/282, A61K31/4745, A61K31/495
View on Google Patents ↗

Quick answer

US 8420650 (Dihydropyridophthalazinone inhibitors of poly(ADP-ribose)polymerase (PARP)) is held by BIOMARIN PHARMACEUTICAL INC.. Status: granted. Granted Apr 16, 2013. Expires Apr 11, 2033 (7 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
15
CPC classes
A61K, A61K31/282, A61K31/4745, A61K31/495, A61K31/5025, A61K31/5377

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Frequently asked questions

What is US patent 8420650?

US 8420650 (Dihydropyridophthalazinone inhibitors of poly(ADP-ribose)polymerase (PARP)) is held by BIOMARIN PHARMACEUTICAL INC.. Status: granted. Granted Apr 16, 2013. Expires Apr 11, 2033 (7 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 8420650?

BIOMARIN PHARMACEUTICAL INC. is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 175 pharmaceutical patents for this assignee.

When does US 8420650 expire?

Our index shows an expiration date of Apr 11, 2033 (7 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.