Thursday, July 9, 2026

Patent intelligence · US

US 9988394

Oxabicycloheptane prodrugs

granted A61KA61K31/337A61K31/34A61K31/496
Status granted
Linked drugs 1
Pipeline programs 3
Years to expiry 12
Applicant portfolio 26
Patent details — US 9988394
Jurisdiction
US
Status
granted
Grant date
Jun 5, 2018
Expiration
May 31, 2038
Claims
16
CPC classes
A61K, A61K31/337, A61K31/34, A61K31/496
View on Google Patents ↗

Quick answer

US 9988394 (Oxabicycloheptane prodrugs) is held by Lixte Biotechnology, Inc.. Status: granted. Granted Jun 5, 2018. Expires May 31, 2038 (12 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
16
CPC classes
A61K, A61K31/337, A61K31/34, A61K31/496, A61K45/06, A61K47/02

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Frequently asked questions

What is US patent 9988394?

US 9988394 (Oxabicycloheptane prodrugs) is held by Lixte Biotechnology, Inc.. Status: granted. Granted Jun 5, 2018. Expires May 31, 2038 (12 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 9988394?

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 9988394 expire?

Our index shows an expiration date of May 31, 2038 (12 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.