Patents by Inventor Andrew F. Rutkiewic

Andrew F. Rutkiewic 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).

  • Coating composition of polyester oligomer and acrylic binder
    Patent number: 4681815
    Abstract: A coating composition based on a binder comprising a major portion of acrylic resin and a minor portion of polyester oligomer, suitable for application to metal and non-metal substrates.
    Type: Grant
    Filed: April 16, 1986
    Date of Patent: July 21, 1987
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Andrew F. Rutkiewic, Clifford H. Strolle
  • Aqueous water-in-oil cleaning emulsion
    Patent number: 4446044
    Abstract: A water-in-oil emulsion stabilized with a blend of selected nonionic surfactants and having a preferred weight ratio of aqueous dispersed phase to continuous organic solvent phase between about 3:1 and 8:1 is provided.The emulsion is characterized by superior cleaning properties and particularly by the capability of removing both water-soluble and solvent-soluble materials from automotive finishes.
    Type: Grant
    Filed: May 7, 1982
    Date of Patent: May 1, 1984
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Andrew F. Rutkiewic, James P. White