The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 25, 2000
Filed:
Jul. 21, 1997
Ton That Hai, Mundelein, IL (US);
David E Pereira, Crystal Lake, IL (US);
Deanna J Nelson, Libertyville, IL (US);
Baxter International Inc., Deerfield, IL (US);
Abstract
Novel polysaccharide compounds are disclosed for decorating biomolecular surfaces to increase isotropic size and mask antigenicity. The oligosaccharides may be synthesized as repeating disaccharide units, or may be derived by acid hydrolysis of naturally occurring polysaccharides. Such natural sources include chondroitins obtained from shark cartilage, or hyaluronic acid. The polyanionic sulfate groups contained in the sugar moieties impart negative charges which repel the molecules from the negatively charged wall of capillaries, to lengthen retention times of decorated drug molecules, such as crosslinked hemoglobin, in the peripheral circulation.