Last Updated: November 8, 2026

Details for Patent: 4,946,687

Name: Drug Patent Intelligence for US Patent 4946687
Creator: DrugPatentWatch
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Summary for Patent: 4,946,687

Title:	Dosage form for treating cardiovascular diseases
Abstract:	An osmotic device is disclosed comprising a first composition, and a second composition with the beneficial drug isradipine in the first composition.
Inventor(s):	Atul D. Ayer, David R. Swanson, Anthony L. Kuczynski
Assignee:	Alza Corp
Application Number:	US07/267,894
Patent Claim Types: see list of patent claims	Composition; Compound; Delivery; Device; Dosage form;

Drugs Protected by US Patent 4,946,687

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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
>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 4,946,687

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Country	Patent Number	Estimated Expiration	Supplementary Protection Certificate	SPC Country	SPC Expiration
Austria	402689	⤷ Start Trial
Austria	A242288	⤷ Start Trial
Australia	2293888	⤷ Start Trial
>Country	>Patent Number	>Estimated Expiration	>Supplementary Protection Certificate	>SPC Country	>SPC Expiration

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