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United States of America Patent and Trademark Office. Granted Patents (USPTO) >
4957744
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Patent Details
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Inventor
della Valle Francesco Romeo Aurelio
Assignee
Fidia, SpA
Attorney
Birch, Stewart, Kolasch & Birch
IPC Codes
A61K 08/72 A61K 08/73 A61L 15/16 A61L 17/00 A61L 15/28 A61L 17/10 A61K 47/36 A61L 27/00 A61L 27/20 C08B 37/00 C08B 37/08 A61K 31/70 C07G 03/00 C07H 01/00
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Patent Office: United States of America Patent and Trademark Office. Granted Patents (USPTO)
Title: Cross-linked esters of hyaluronic acid
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Application No: 07/106,658
Publication No: 4957744
Application Date: 1987-10-13
Publication Date: 1990-09-18
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Abstract
Cross-linked esters of hyaluronic acid are provided which result from the esterification of polyhydric alcohols with two or more carboxy groups of the hyaluronic acid polysaccharide. These cross-linked esters are useful in the field of biodegradable plastics for sanitary and surgical articles and in the pharmaceutical and cosmetic fields for the preparation of useful compositions and articles.
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US4957744 at USPTO
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Referenced by : 113 patent(s) worldwide
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Reference cited : 29 patent(s) worldwide
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Inventor: Balazs Endre A Assignee: Biotrics, Inc Attorney: nullHubbell, Cohen, Stiefel & Gross Title: Ultrapure hyaluronic acid and the use thereof Patent Office: United States of America Patent and Trademark Office. Granted Patents (USPTO) Document Number: US4141973
Referenced by: 220
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Inventor: Yannas Ioannis V; Burke John F; Gordon Philip L; Huang Chor Assignee: Massachusetts Institute of Technology Attorney: nullSmith, Jr Arthur A; Santa Martin M; Brook David E Title: Multilayer membrane useful as synthetic skin Patent Office: United States of America Patent and Trademark Office. Granted Patents (USPTO) Document Number: US4060081
Referenced by: 153
Reference cited: 7
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Inventor: Yannas Ioannis V; Gordon Philip L; Huang Chor; Silver Frederick H; Burke John F Assignee: Massachusetts Institute of Technology Attorney: nullSmith, Jr Arthur A; Brook David E Title: Crosslinked collagen-mucopolysaccharide composite materials Patent Office: United States of America Patent and Trademark Office. Granted Patents (USPTO) Document Number: US4280954
Referenced by: 151
Reference cited: 4
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Inventor: Balazs Endre A; Leshchiner Adolf Assignee: Biomatrix, Inc Attorney: nullPalmer Sheldon Title: Cross-linked gels of hyaluronic acid and products containing such gels Patent Office: United States of America Patent and Trademark Office. Granted Patents (USPTO) Document Number: US4582865
Referenced by: 132
Reference cited: 5
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Inventor: Balazs Endre A; Leshchiner Adolf Assignee: Biomatrix, Inc Attorney: nullPalmer Sheldon Title: Hyaluronate modified polymeric articles Patent Office: United States of America Patent and Trademark Office. Granted Patents (USPTO) Document Number: US4500676
Referenced by: 75
Reference cited: 3
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Inventor: Pape Lawrence G Assignee: Opthalmic Systems, Inc Attorney: nullBurke Joseph Patrick Title: Ophthalmological procedures Patent Office: United States of America Patent and Trademark Office. Granted Patents (USPTO) Document Number: US4328803
Referenced by: 64
Reference cited: 1
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Inventor: Balazs Endre A; Wedlock David J; Phillips Glyn O Assignee: Biomatrix, Inc Attorney: nullPalmer Sheldon Title: Polymeric articles modified with hyaluronate Patent Office: United States of America Patent and Trademark Office. Granted Patents (USPTO) Document Number: US4487865
Referenced by: 40
Reference cited: 3
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Inventor: Balazs Endre A; Leshchiner Adolf Assignee: Biomatrix, Inc Attorney: nullPalmer Sheldon Title: Cross-linked gels of hyaluronic acid and products containing such gels Patent Office: United States of America Patent and Trademark Office. Granted Patents (USPTO) Document Number: US4605691
Referenced by: 34
Reference cited: 5
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Inventor: Mardiguian Jean S Assignee: Pharmindustrie Attorney: nullBeveridge, DeGrandi & Kline Title: Heparin esters and processes for their preparation Patent Office: United States of America Patent and Trademark Office. Granted Patents (USPTO) Document Number: US4440926
Referenced by: 16
Reference cited: 10
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Inventor: Wagner Kuno Assignee: Bayer Aktiengesellschaft Attorney: nullHarsh Gene; Gil Joseph C; Whalen Lyndanne M Title: Methylolated mono- and oligosaccharides Patent Office: United States of America Patent and Trademark Office. Granted Patents (USPTO) Document Number: US4322523
Referenced by: 9
Reference cited: 8
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