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Hyaluronic acid fractions having pharmaceutical activity, and pharmaceutical compositions containing the same

  • US 5,925,626 A
  • Filed: 06/06/1995
  • Issued: 07/20/1999
  • Est. Priority Date: 10/11/1983
  • Status: Expired due to Term
First Claim
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1. A substantially pure, non-inflammatory hyaluronic acid fraction having an average molecular weight of between 30,000 and 730,000, and which is free of low molecular weight hyaluronic acid having a molecular weight of less than 30,000.

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