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Esters of hyaluronic acid

  • US 4,851,521 A
  • Filed: 07/02/1986
  • Issued: 07/25/1989
  • Est. Priority Date: 07/08/1985
  • Status: Expired due to Term
First Claim
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1. Total and partial esters of hyaluronic acid with alcohols of the aliphatic, araliphatic, cycloaliphatic and heterocyclic series and salts of such partial esters with inorganic or organic bases, with the exception of the total methyl ester of hyaluronic acid.

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