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:
May. 10, 2022
Filed:
Nov. 02, 2017
Merz Pharma Gmbh & Co. Kgaa, Frankfurt am Main, DE;
Nadine Hagedorn, Frankfurt am Main, DE;
Roland Stragies, Berlin, DE;
Lubin Belkovi, Friedrichsdorf, DE;
Radia El-Banna, Bad Vilbel-Gronau, DE;
Merz Pharma GmbH & Co. KGaA, Frankfurt am Main, DE;
Abstract
The present invention generally relates to the field of hyaluronic acid (HA) dermal fillers, and more specifically to methods for preparing crosslinked HA-based compositions in the form of a gel comprising high-temperature dialysis and/or crosslinking in the presence of phosphate and an alkaline metal halide salt. The present invention further relates to crosslinked HA-based gel compositions prepared by said methods and their use as dermal fillers in aesthetic applications such as wrinkle treatments.