Patents by Inventor Charles M. Dallas

Charles M. Dallas 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).

  • HYDROCARBON FLUID-WATER SEPARATION
    Publication number: 20240173658
    Abstract: A substrate for use in a filter media including, for example, in a hydrocarbon fluid-water separation filter; methods of identifying the substrate; methods of making the substrate; methods of using the substrate; and methods of improving the roll off angle of the substrate. In some embodiments, the substrate includes a hydrophilic group-containing polymer or a hydrophilic group-containing polymer coating.
    Type: Application
    Filed: September 29, 2023
    Publication date: May 30, 2024
    Inventors: Bradly G. Hauser, Stephen K. Sontag, Davis B. Moravec, Stuti S. Rajgarhia, Andrew J. Dallas, Vijay K. Kapoor, Aflal Rahmathullah, Charles S. Christ, Joseph M. Block
  • Washer
    Patent number: 4102239
    Abstract: An anti snag washer that is employed with a conventional screw or bolt and nut and provides for increased area of contact with the workpiece due to the combination of an inner and outer washer.
    Type: Grant
    Filed: February 17, 1977
    Date of Patent: July 25, 1978
    Inventor: Charles M. Dallas