Last Updated: November 8, 2026

Details for Patent: 12,178,918

Name: Drug Patent Intelligence for US Patent 12178918
Creator: DrugPatentWatch
License: https://www.drugpatentwatch.com/terms.php

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Which drugs does patent 12,178,918 protect, and when does it expire?

Patent 12,178,918 protects CREXONT and is included in one NDA.

This patent has twenty-seven patent family members in twelve countries.

Summary for Patent: 12,178,918

Title:	Muco-adhesive, controlled release formulations of levodopa and/or esters of levodopa and uses thereof
Abstract:	The invention provides an oral solid formulation comprising (a) a controlled release component comprising a core comprising levodopa, wherein the core is coated with a muco-adhesive coating and the muco-adhesive coating is externally coated with an enteric coating; and (b) an immediate release component comprising levodopa. The invention further provides a method for making and using the oral solid formulation.
Inventor(s):	Ann Hsu, Liang Dong, Amy Ding, Suneel Gupta
Assignee:	Impax Laboratories LLC
Application Number:	US18/755,045
Patent Litigation and PTAB cases:	See patent lawsuits and PTAB cases for patent 12,178,918
Patent Claim Types: see list of patent claims	Composition; Formulation; Compound; Dosage form;

Drugs Protected by US Patent 12,178,918

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
Impax	CREXONT	carbidopa; levodopa	CAPSULE, EXTENDED RELEASE;ORAL	217186-001	Aug 7, 2024		RX	Yes	No	⤷ Start Trial	⤷ Start Trial	Y				⤷ Start Trial
Impax	CREXONT	carbidopa; levodopa	CAPSULE, EXTENDED RELEASE;ORAL	217186-002	Aug 7, 2024		RX	Yes	No	⤷ Start Trial	⤷ Start Trial	Y				⤷ Start Trial
Impax	CREXONT	carbidopa; levodopa	CAPSULE, EXTENDED RELEASE;ORAL	217186-003	Aug 7, 2024		RX	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 12,178,918

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Country	Patent Number	Estimated Expiration	Supplementary Protection Certificate	SPC Country	SPC Expiration
Australia	2014332024	⤷ Start Trial
Australia	2019284060	⤷ Start Trial
Australia	2021282393	⤷ Start Trial
>Country	>Patent Number	>Estimated Expiration	>Supplementary Protection Certificate	>SPC Country	>SPC Expiration

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