Health, AsUltrasound contrast agents including protein stabilized microspheres of perfluoropropane, perfluorobutane or perfluoropentaneUS67341719 Oct 199811 May 2004Inex Pharmaceuticals Corp.Mixing aggregation-preventing agent, lipid and detergent, dialyzing in buffered salt solutionUS674377929 Apr 19971 Jun 2004Imarx Pharmaceutical Corp.Methods for delivering compounds into a cellUS677369625 Oct