Patents by Inventor David F. Rutland

David F. Rutland 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).

  • Deinking processes
    Patent number: 5601689
    Abstract: A process for removing a xerographic image from a substrate which comprises contacting the image with an aqueous solution comprised of water, a surfactant, ionic salts and caustic reagent.
    Type: Grant
    Filed: February 27, 1995
    Date of Patent: February 11, 1997
    Assignee: Xerox Corporation
    Inventors: Guerino G. Sacripante, David F. Rutland, Walter Mychajlowskij, J. Stephen Kittelberger
  • Treated papers
    Patent number: 5302249
    Abstract: A paper comprised of a supporting substrate with a coating comprised of a desizing component and a hydrophilic polymer, and more specifically in an embodiment the paper is comprised of a paper comprised of a supporting substrate treated with desizing agents selected from the group consisting of (1) hydrophilic poly(dialkylsiloxanes); (2) poly(alkylene glycol); (3) poly(propylene oxide)-poly(ethylene oxide) copolymers; (4) fatty ester modified compounds of phosphate, sorbitan, glycerol, poly(ethylene glycol), sulfosuccinic acid, sulfonic acid and alkyl amine; (5) poly(oxyalkylene) modified compounds of sorbitan esters, fatty amines, alkanol amides, castor oil, fatty acids and fatty alcohols; (6) quaternary alkosulfate compounds; (7) fatty imidazolines; and mixtures thereof.
    Type: Grant
    Filed: January 25, 1990
    Date of Patent: April 12, 1994
    Assignee: Xerox Corporation
    Inventors: Shadi L. Malhotra, David F. Rutland, Arthur Y. Jones