Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Carbohydrate doai
Reexamination Certificate
2003-03-12
2008-12-09
Jiang, Shaojia Anna (Department: 1623)
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Carbohydrate doai
Reexamination Certificate
active
07462606
ABSTRACT:
The present invention relates to hyaluronic acid ester derivatives, whose carboxylic groups are partially esterified with hydroxyl groups of propiophenone derivatives, to the hydrogel materials consisting of the said hyaluronic acid ester derivatives, to their preparation process by photocuring of the hyaluronic acid ester derivatives, and their use in the biomedical, sanitary and surgical fields, and in the medical field as controlled release systems for drugs.
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Bellini Davide
Zanellato Anna Maria
Clark & Elbing LLP
Fidia Farmaceutici S.p.A.
Jiang Shaojia Anna
Krishnan Ganapathy
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