Patents by Inventor Anders T. Edgren

Anders T. Edgren 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 drying and expanding microspheres
    Patent number: 4397799
    Abstract: The present invention relates to a process for drying and expanding microspheres whereby first a dispersion of the microspheres in an inert liquid is prepared. This dispersion is then atomized in a hot inert gas. The process of the invention is advantageously carried out in a spray dryer.
    Type: Grant
    Filed: December 18, 1981
    Date of Patent: August 9, 1983
    Assignee: KemaNord AB
    Inventors: Anders T. Edgren, Lars-Olof Svedberg