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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.:

US 10898613 B1

PDFFull Text
Date of Patent:
Jan. 26, 2021

Filed:

Sep. 20, 2017

Hyaluronic acid gel with a divalent zinc cation

Applicant:

Nestlé Skin Health SA, Lausanne, CH;

Inventors:

Laura Jing Jing, Antibes, FR;

Craig Steven Harris, Biot, FR;

Anders Karlsson, Storvreta, SE;

Elin Säwén, Sollentuna, SE;

Assignee:

NESTLÉ SKIN HEALTH SA, Lausanne, CH;

Attorneys:

Foley & Lardner LLP

Sunit Talapatra

Primary Examiner:

Kyung S Chang

Int. Cl.
CPC ...
A61L 27/52 (2006.01); A61L 27/20 (2006.01); C08B 37/00 (2006.01); C08L 5/08 (2006.01); A61P 43/00 (2006.01); A61P 17/00 (2006.01); A61P 23/02 (2006.01); A61L 2/00 (2006.01); A61L 27/02 (2006.01); A61L 27/54 (2006.01); A61L 27/58 (2006.01);
U.S. Cl.
CPC ...
A61L 27/52 (2013.01); A61L 27/025 (2013.01); A61L 27/20 (2013.01); A61L 27/54 (2013.01); A61L 27/58 (2013.01); A61L 2300/102 (2013.01); A61L 2400/06 (2013.01);
Abstract

A method of preparing a sterilized injectable hydrogel composition, including the steps: a) covalently crosslinking a glycosaminoglycan using a bi- or polyfunctional crosslinking agent to form a covalently crosslinked glycosaminoglycan, b) swelling the covalently crosslinked glycosaminoglycan in a solution including a divalent cation to form a hydrogel composition, and c) sterilizing the hydrogel composition by autoclaving to form a sterilized injectable hydrogel composition, and to sterilized injectable hydrogel compositions obtainable by such method.

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