Patents by Inventor Michael Chefren

Michael Chefren 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).

  • Method of coating and coated sheet piling sections
    Publication number: 20080241399
    Abstract: A coated sheet piling section that includes: a steel core having a pair of opposing surfaces; a primer layer on each surface; a cycloaliphatic amine epoxy layer on each primer layer; and an aliphatic acrylic polyurethane disposed on one or both of the two cycloaliphatic amine epoxy layers. The primer is preferably an inorganic zinc primer. The cycloaliphatic amine epoxy layers have a thickness of from about 4 mils to about 16 mils and the aliphatic acrylic polyurethane layers have a thickness of from about 2 mils to about 14 mils.
    Type: Application
    Filed: March 30, 2007
    Publication date: October 2, 2008
    Inventors: Morrison Lee Wilkins, Michael Chefren
  • Sheet piling section
    Patent number: D573266
    Type: Grant
    Filed: June 1, 2007
    Date of Patent: July 15, 2008
    Assignee: Skyline Steel, LLC
    Inventors: Michael Chefren, Alwyn McDowall