Last Updated: September 24, 2026

Details for Patent: 12,409,180

Name: Drug Patent Intelligence for US Patent 12409180
Creator: DrugPatentWatch
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Which drugs does patent 12,409,180 protect, and when does it expire?

Patent 12,409,180 protects OHTUVAYRE and is included in one NDA.

This patent has ten patent family members in ten countries.

Summary for Patent: 12,409,180

Title:	Formulation production process
Abstract:	The present invention relates to a process for producing a sterile liquid pharmaceutical composition suitable for administration by inhalation comprising ensifentrine particles, wherein the process comprises: (a) heating ensifentrine particles at a temperature of from 100° C. to 220° C. to obtain sterile ensifentrine particles; and (b) combining the sterile ensifentrine particles with a sterile liquid vehicle to produce the sterile liquid pharmaceutical composition suitable for administration by inhalation. A process for producing an ampule comprising the sterile liquid pharmaceutical composition is also described.
Inventor(s):	Peter Lionel Spargo, Phillip A. Haywood, Edward James French
Assignee:	Verona Pharma Ltd
Application Number:	US18/946,234
Patent Claim Types: see list of patent claims	Use; Composition;

Drugs Protected by US Patent 12,409,180

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
Msd	OHTUVAYRE	ensifentrine	SUSPENSION;INHALATION	217389-001	Jun 26, 2024		RX	Yes	Yes	12,409,180	⤷ 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 12,409,180

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Country	Patent Number	Estimated Expiration	Supplementary Protection Certificate	SPC Country	SPC Expiration
Australia	2023221587	⤷ Start Trial
Canada	3244348	⤷ Start Trial
China	118946344	⤷ Start Trial
>Country	>Patent Number	>Estimated Expiration	>Supplementary Protection Certificate	>SPC Country	>SPC Expiration

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