Wednesday, July 8, 2026

Patent intelligence · US

US 8735392

Crystalline (8S,9R)-5-fluoro-8-(4-fluorophenyl)-9-(1-methyl-1H-1,2,4-triazol-5-yl)-8,9-dihydro-2H-pyrido[4,3,2-de]phthalazin-3(7H)-one tosyl…

granted A61PA61P35/00A61P35/02
Status granted
Linked drugs 2
Pipeline programs 6
Years to expiry 8
Applicant portfolio 175
Patent details — US 8735392

Quick answer

US 8735392 (Crystalline (8S,9R)-5-fluoro-8-(4-fluorophenyl)-9-(1-methyl-1H-1,2,4-triazol-5-yl)-8,9-dihydro-2H-pyrido[4,3,2-de]phthalazin-3(7H)-one tosylate salt) is held by BIOMARIN PHARMACEUTICAL INC.. Status: granted. Granted May 27, 2014. Expires May 22, 2034 (8 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
5
CPC classes
A61P, A61P35/00, A61P35/02

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Frequently asked questions

What is US patent 8735392?

US 8735392 (Crystalline (8S,9R)-5-fluoro-8-(4-fluorophenyl)-9-(1-methyl-1H-1,2,4-triazol-5-yl)-8,9-dihydro-2H-pyrido[4,3,2-de]phthalazin-3(7H)-one tosylate salt) is held by BIOMARIN PHARMACEUTICAL INC.. Status: granted. Granted May 27, 2014. Expires May 22, 2034 (8 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 8735392?

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 8735392 expire?

Our index shows an expiration date of May 22, 2034 (8 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.