Patents by Inventor Larson B. Dunn

Larson B. Dunn 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).

  • Substituted glycoside compositions
    Patent number: 4968785
    Abstract: A method of preparing a composition comprised of a glycoside having a cationic-substituted glycosyl moiety is provided. A cationic starch derivative is reacted with a monohydric alcohol to form cationic-substituted glycosides. Cationic starch derivatives include the tertiary amino, imino, quaternary ammonium or phosphonium, or tertiary sulfonium starch derivatives. Compounds generally characterized as glycosides having cationic-substituted glycosyl moiety are also claimed.
    Type: Grant
    Filed: May 17, 1988
    Date of Patent: November 6, 1990
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Kenneth B. Moser, Larson B. Dunn, James C. Schmidt