Patents by Inventor William M. DeLong

William M. DeLong 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).

  • Asphalt release agent
    Patent number: 5494502
    Abstract: An asphalt release agent and a method of applying the same, wherein said asphalt release agent comprises a fatty oil as the active ingredient together with a foaming agent, a crosslinked copolymer, an alkalinizing agent and a preservative. The release agent is preferably applied using a pneumatic pump to pump the release agent through an air-inducting nozzle.
    Type: Grant
    Filed: October 3, 1994
    Date of Patent: February 27, 1996
    Assignee: The ChemMark Corporation
    Inventor: William M. DeLong
  • Asphalt release agent and system
    Patent number: 5322554
    Abstract: An asphalt release agent and a method of applying the same, including a water-based solution of magnesium chloride and/or calcium chloride together with a phosphate ester corrosion inhibitor, an anionic isopropyl alcohol surfactant and a dye. The release agent is applied using a spray gun in combination with an air compressor to add air to foam the release agent.
    Type: Grant
    Filed: June 3, 1992
    Date of Patent: June 21, 1994
    Assignee: The ChemMark Corporation, Inc.
    Inventor: William M. DeLong