Patents by Inventor Victor C. Leffelman

Victor C. Leffelman 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).

  • Static mixing device
    Patent number: 4136976
    Abstract: An improved mixing device which comprises a cylinder having an inlet and an outlet and contained within the cylinder a plurality of hollow spheres having openings all about their surfaces.
    Type: Grant
    Filed: May 23, 1977
    Date of Patent: January 30, 1979
    Assignee: Nalco Chemical Company
    Inventor: Victor C. Leffelman