Patents by Inventor Barbara Schulte

Barbara Schulte 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 for producing ultrafine-crystallization products
    Patent number: 6074441
    Abstract: The process for producing crystallisation products with an average particle diameter of <1 .mu.m is based on the atomisation of a solution and the simultaneous evaporation of the solvent. The atomised solution A crystallises in a gas atmosphere, in which it is simultaneously contacted with a cloud of drops 4 of a surfactant-containing liquid B, thus forming an aerosol mixture A, B which is then deposited in the form of a colloidal crystal suspension in which the surfactant-containing liquid B forms the continuous phase. The cloud of drops 4 of the surfactant-containing liquid can also be produced by atomisation.
    Type: Grant
    Filed: April 28, 1997
    Date of Patent: June 13, 2000
    Assignee: Bayer Aktiengesellschaft
    Inventors: Barbara Schulte, Stefan Hofmann, Andre Fellholter, Heiko Herold, Frank Behrendt