Last Updated: November 5, 2026

Details for Patent: 11,478,450

Name: Drug Patent Intelligence for US Patent 11478450
Creator: DrugPatentWatch
License: https://www.drugpatentwatch.com/terms.php

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Which drugs does patent 11,478,450 protect, and when does it expire?

Patent 11,478,450 protects RADICAVA ORS and is included in one NDA.

This patent has thirty-one patent family members in nineteen countries.

Summary for Patent: 11,478,450

Title:	Edaravone suspension for oral administration
Abstract:	An edaravone suspension for human oral administration includes edaravone particles, a dispersant, and water.
Inventor(s):	Tetsuo Hayama, Tomohiro Takahashi, Tomoyuki Omura, Kouji Hayashi, Munetomo Matsuda, Tadashi Miyazawa
Assignee:	Mitsubishi Chemical Group Corp , Shionogi Inc
Application Number:	US17/560,493
Patent Litigation and PTAB cases:	See patent lawsuits and PTAB cases for patent 11,478,450
Patent Claim Types: see list of patent claims	Use; Formulation; Dosage form;

Drugs Protected by US Patent 11,478,450

Glossary

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Applicant	Tradename	Generic Name	Dosage	NDA	Approval Date	TE	Type	RLD	RS	Patent No.	Patent Expiration	Product	Substance	Delist Req.	Patented / Exclusive Use	Submissiondate
Shionogi	RADICAVA ORS	edaravone	SUSPENSION;ORAL	215446-001	May 12, 2022		RX	Yes	Yes	11,478,450	⤷ Start Trial				TREATMENT OF AMYOTROPHIC LATERAL SCLEROSIS	⤷ 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 11,478,450

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Country	Patent Number	Estimated Expiration	Supplementary Protection Certificate	SPC Country	SPC Expiration
Argentina	116967	⤷ Start Trial
Australia	2019369843	⤷ Start Trial
Australia	2025205635	⤷ Start Trial
Brazil	112021008197	⤷ Start Trial
China	112969459	⤷ Start Trial
China	117379369	⤷ Start Trial
China	117379370	⤷ Start Trial
>Country	>Patent Number	>Estimated Expiration	>Supplementary Protection Certificate	>SPC Country	>SPC Expiration

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