Last Updated: November 8, 2026

Patent: 5,539,063

Summary for Patent: 5,539,063

Title:	Polymer for making poly(ethylene glycol)-protein conjugates
Abstract:	The present invention is a polymer which may be used to produce a physiologically active, substantially non-immunogenic water soluble polyethylene glycol protein conjugate having the same utility as the protein which forms the conjugate, without having the same properties of producing an immunogenic response possessed by the protein which forms this conjugate.
Inventor(s):	John Hakimi, Patricia Kilian, Perry Rosen
Assignee:	Hoffmann La Roche Inc
Application Number:	US08/456,450
Patent Claims:	see list of patent claims

Details for Patent 5,539,063

Glossary

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Applicant	Tradename	Biologic Ingredient	Dosage Form	BLA	Approval Date	Patent No.	Expiredate
Schering Corporation A Subsidiary Of Merck & Co., Inc.	PEGINTRON/ REBETOL COMBO PACK	peginterferon alfa-2b and ribavirin		125196	June 13, 2008	⤷ Start Trial	2015-06-01
>Applicant	>Tradename	>Biologic Ingredient	>Dosage Form	>BLA	>Approval Date	>Patent No.	>Expiredate

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