Last Updated: November 8, 2026

Details for Patent: 11,583,542

Name: Drug Patent Intelligence for US Patent 11583542
Creator: DrugPatentWatch
License: https://www.drugpatentwatch.com/terms.php

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Which drugs does patent 11,583,542 protect, and when does it expire?

Patent 11,583,542 protects RELYVRIO and is included in one NDA.

This patent has sixteen patent family members in twelve countries.

Summary for Patent: 11,583,542

Title:	Compositions of bile acids and phenylbutyrate compounds
Abstract:	The present disclosure relates to compositions including a phenylbutyrate compound and a bile acid, and methods of processing such compositions.
Inventor(s):	Joshua Cohen, Justin Klee, David Wai Fung Ma
Assignee:	Amylyx Pharmaceuticals Inc
Application Number:	US16/940,102
Patent Claim Types: see list of patent claims	Composition;

Drugs Protected by US Patent 11,583,542

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
Amylyx	RELYVRIO	sodium phenylbutyrate; taurursodiol	FOR SUSPENSION;ORAL	216660-001	Sep 29, 2022		DISCN	Yes	No	⤷ Start Trial	⤷ Start Trial	Y				⤷ 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 11,583,542

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Country	Patent Number	Estimated Expiration	Supplementary Protection Certificate	SPC Country	SPC Expiration
Argentina	120774	⤷ Start Trial
Australia	2020408674	⤷ Start Trial
Brazil	112022011948	⤷ Start Trial
Canada	3161245	⤷ Start Trial
China	114929211	⤷ Start Trial
China	118949048	⤷ Start Trial
European Patent Office	4076426	⤷ Start Trial
>Country	>Patent Number	>Estimated Expiration	>Supplementary Protection Certificate	>SPC Country	>SPC Expiration

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