Patents by Inventor Alan A. Del Paggio

Alan A. Del Paggio 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).

  • Metal complexes of mannich bases with a schiff base
    Patent number: 4816038
    Abstract: Metal complexes of hydroxyl- and/or thiol-containing Mannich are prepared by reacting a transition metal-containing agent with an aromatic Mannich. The Mannich is prepared from a substituted hydroxyl- and/or thiol-containing aromatic, an aldehyde or ketone, and a hydroxyl- and/or thiol-containing amine compound. A Schiff base is then reacted therewith. The products are useful in reducing soot ignition temperatures in diesel particulate traps.
    Type: Grant
    Filed: February 23, 1988
    Date of Patent: March 28, 1989
    Assignee: The Lubrizol Corporation
    Inventors: Frederick W. Koch, Gail A. Evans, Casper J. Dorer, Jr., Alan A. Del Paggio