Patents by Inventor Friedrich Resch

Friedrich Resch 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 the production of negligibly dusty preparation
    Patent number: 4295851
    Abstract: Described is a process for the production of negligibly dusty preparations by spray drying an aqueous suspension containing at least one water-soluble dye or optical brightener and optionally further additives, characterized in that a dust-binding surface active agent is added to the aqueous suspension containing at least one adhesive as e.g. sorbitol and/or to the spray-dried product.
    Type: Grant
    Filed: June 17, 1980
    Date of Patent: October 20, 1981
    Assignee: Ciba-Geigy Corporation
    Inventors: Konrad Neumann, Ernst Schenkenberger, Friedrich Resch