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Therapeutic delivery systems

  • US 7,083,572 B2
  • Filed: 03/26/2002
  • Issued: 08/01/2006
  • Est. Priority Date: 11/30/1993
  • Status: Expired due to Fees
First Claim
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1. A targeted therapeutic delivery system comprising gas- or temperature activated gaseous precursor-filled lipid microspheres, wherein said lipid microspheres comprise a therapeutic compound and a negatively charged lipid, and said gas or temperature activated gaseous precursor is selected from the group consisting of perfluorocarbons and sulfur hexafluoride.

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