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. 12, 2026
Filed:
Nov. 19, 2020
Crosslinked butyrate or butyrate-formate derivatives of hyaluronic acid and the crosslinking thereof
Bmg Pharma S.p.a., Milan, IT;
Marco Mastrodonato, Milan, IT;
Luca Stucchi, Torviscosa, IT;
Alessandra Sechi, Torviscosa, IT;
Fabrizio Picotti, Torviscosa, IT;
Rita Gianni, Monrupino, IT;
BMG PHARMA S.P.A., Torviscosa, IT;
Abstract
The present invention relates to a process for the preparation of crosslinked hyaluronic acid butyrate or crosslinked hyaluronic acid butyrate-formate or an acceptable salt thereof, wherein the process comprises the crosslinking reaction of hyaluronic acid butyrate or hyaluronic acid butyrate-formate or a pharmaceutically acceptable salt thereof in an organic solvent with a carboxyl activating reagent, characterized in that the hyaluronic acid butyrate or hyaluronic acid butyrate-formate or pharmaceutically acceptable salt thereof is a mixture of a high-molecular-weight polysaccharide and a low-molecular-weight polysaccharide.