Patents by Inventor Charles Voegtlin

Charles Voegtlin 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).

  • Method of accelerating the drying of wet hydropohilic substrates
    Patent number: 4434196
    Abstract: A process for accelerating the drying of a wet hydrophilic substrate, e.g. in a washing process, comprising the steps of(i) applying to the wet substrate by an exhaust process 0.05 to 1.0 per kg dry weight of substrate of a mixture comprising a cationic agent having affinity for the fibres and an emulsified polyethylene wax in an aqueous medium, and(ii) subsequently drying the substrate.
    Type: Grant
    Filed: March 17, 1982
    Date of Patent: February 28, 1984
    Assignee: Sandoz Ltd.
    Inventors: Tibor Robinson, Charles Voegtlin