Patents by Inventor Willaim J. Catena

Willaim J. Catena 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).

  • Patent number: 5256450
    Abstract: A process for impregnating and sealing porous articles wherein the excess impregnant can easily be removed from the surface of the article by washing with water without the use of organic solvents or surfactants either in the aqueous wash solution or the impregnating solution wherein the sealant comprises mixtures of selected acrylate or methacrylate monomers and hydroxy-terminated acrylates or methacrylates.
    Type: Grant
    Filed: July 13, 1992
    Date of Patent: October 26, 1993
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventor: Willaim J. Catena