Last Updated: May 15, 2026

Details for Patent: 5,869,473

Name: Drug Patent Intelligence for US Patent 5869473
Creator: DrugPatentWatch
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Summary for Patent: 5,869,473

Title:	Method for treating and preventing hyperparathyroidism
Abstract:	A method for reducing or preventing elevated blood parathyroid hormone level in a human being suffering from hyperparathyroidism by administering a sufficient amount of 1 alpha -OH vitamin D2, 1 alpha -OH vitamin D4 or 1 alpha ,24(R)-(OH)2 vitamin D4.
Inventor(s):	Joyce C. Knutson, Richard B. Mazess, Charles W. Bishop
Assignee:	Genzyme Corp
Application Number:	US08/907,659
Patent Claim Types: see list of patent claims	Use; Composition; Formulation; Delivery;

Drugs Protected by US Patent 5,869,473

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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 5,869,473

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Country	Patent Number	Estimated Expiration	Supplementary Protection Certificate	SPC Country	SPC Expiration
Argentina	247817	⤷ Start Trial
Austria	114471	⤷ Start Trial
Austria	250566	⤷ Start Trial
>Country	>Patent Number	>Estimated Expiration	>Supplementary Protection Certificate	>SPC Country	>SPC Expiration

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