Patents Assigned to The Board of Regents of the University of Co
  • Methods and apparatus for fine particle formation
    Patent number: 6095134
    Abstract: Methods and apparatuses are provided for forming fine particles of a desired substance comprising dissolving said substance in a fluid such as water to form a solution and mixing the solution with a second fluid such as supercritical carbon dioxide which becomes a gas upon rapid pressure release, and with which the first fluid is at least partially immiscible, and releasing the pressure to form an air-borne dispersion or aerosol comprising particles having an average diameter between about 0.1 and about 6.5 .mu.m.
    Type: Grant
    Filed: April 24, 1997
    Date of Patent: August 1, 2000
    Assignee: The Board of Regents of the University of Co
    Inventors: Robert E. Sievers, Uwe Karst