Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Carbohydrate doai
Reexamination Certificate
2011-02-01
2011-02-01
Sullivan, Daniel M (Department: 1621)
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Carbohydrate doai
C424S009340, C424S489000, C424S499000, C536S053000, C977S906000, C977S707000, C977S788000
Reexamination Certificate
active
07879818
ABSTRACT:
Methods are disclosed for preparing novel biodegradable cross-linked nanoparticles based on covalently cross-linking modifications of hyaluronic acid. The final products of the present invention are stable in aqueous media, and may be used as detergents and as additives for pharmaceutical compositions for drug delivery, DNA carrier system and other applications. The nanoparticles made from the biopolymers of the present invention may also be used in controlled release applications, super-absorbent materials as well as biomaterials like enzyme immobilization.
REFERENCES:
patent: 6831172 (2004-12-01), Barbucci et al.
patent: 2006/0040892 (2006-02-01), Hu et al.
Bodnar Magdolna
Borbely Janos
Denyicska Ildiko Schriffertne
Rente Tunde
Bouner & O'Rourke, LLP
Katakam Sudhakar
O'Rourke Thomas A.
Sullivan Daniel M
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