Patents by Inventor Andrew Robert Souter

Andrew Robert Souter has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Process and apparatus for producing particles using a supercritical fluid
    Patent number: 6830714
    Abstract: A process, and a suitable apparatus, for production of particles of a material in which stream of a dispersion of the material in a solvent and a stream of a compressible fluid antisolvent substance are mixed under conditions such that the substance is in compressible fluid antisolvent state. The mixture then flows along a conduit (17) toward an orifice (18), from which it flows into a downstream region in which the compressible fluid antisolvent substance decompresses and the material is isolated in a particulate state. Preferably the antisolvent substance is a supercritical fluid. The process and apparatus can generate a co-formulation of the material with additives which can be introduced in a suitable aqueous or solvent based carrier vehicle.
    Type: Grant
    Filed: October 19, 2001
    Date of Patent: December 14, 2004
    Assignee: SmithKline Beecham plc
    Inventors: Petrus Paulus Cornelis Avontuur, David Roy Merrifield, Andrew Robert Souter, Christopher Edmund Valder, John Peter Warr