Last Updated: September 25, 2026

Details for Patent: 11,903,908


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Which drugs does patent 11,903,908 protect, and when does it expire?

Patent 11,903,908 protects GOCOVRI and is included in one NDA.

This patent has one patent family member in one country.

Summary for Patent: 11,903,908
Title:Methods of administering amantadine
Abstract:Methods of nighttime administration of amantadine to reduce sleep disturbances in patient undergoing treatment with amantadine are described, as well as compositions of extended release amantadine that are suitable for nighttime administration.
Inventor(s):Gregory T. Went, Timothy J. Fultz, Natalie McClure
Assignee: Adamas Pharma LLC
Application Number:US17/088,369
Patent Claim Types:
see list of patent claims
Use; Composition; Dosage form;

Drugs Protected by US Patent 11,903,908

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Supernus Pharms GOCOVRI amantadine hydrochloride CAPSULE, EXTENDED RELEASE;ORAL 208944-001 Aug 24, 2017 RX Yes No 11,903,908 ⤷  Start Trial AS ADJUNCTIVE TREATMENT TO LEVODOPA/CARBIDOPA IN PATIENTS WITH PARKINSON'S DISEASE EXPERIENCING 'OFF' EPISODES ⤷  Start Trial
Supernus Pharms GOCOVRI amantadine hydrochloride CAPSULE, EXTENDED RELEASE;ORAL 208944-002 Aug 24, 2017 RX Yes Yes 11,903,908 ⤷  Start Trial AS ADJUNCTIVE TREATMENT TO LEVODOPA/CARBIDOPA IN PATIENTS WITH PARKINSON'S DISEASE EXPERIENCING 'OFF' EPISODES ⤷  Start Trial
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Patented / Exclusive Use >Submissiondate

International Family Members for US Patent 11,903,908

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
World Intellectual Property Organization (WIPO) 2014204933 ⤷  Start Trial
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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