Patents by Inventor Steven Lohnes

Steven Lohnes 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).

  • Additive for two component epoxy resin compositions
    Patent number: 5338568
    Abstract: The invention provides a glycol additive for two component resin compositions which are particularly useful as concrete crack sealants. The glycol additive is selected from the group consisting of glycerine, ethylene glycol, diethylene glycol and triethylene glycol and can be included in either the resin or hardener component.
    Type: Grant
    Filed: November 5, 1992
    Date of Patent: August 16, 1994
    Assignee: Cappar Ltd.
    Inventors: Steven A. Lohnes, Francis R. Crowne
  • Conductive coating composition
    Patent number: 5041242
    Abstract: A composition for forming electrically-conductive coatings, consisting essentially of a water-urethane resin, a plurality of carbon pigments including carbon black and natural graphite, each carbon pigment having a different preselected average particle size, and sufficient water to permit dispersion of the resin and carbon pigments therethrough. The ratio of resin to total carbon pigment and the ratio of each carbon pigment to total carbon pigment is selected such that a coating formed upon air drying of the composition has a resistance of less than 1 ohms per square and as low as 0.15-0.3 ohms per square.
    Type: Grant
    Filed: January 12, 1989
    Date of Patent: August 20, 1991
    Assignee: Cappar Limited
    Inventors: Robert Fowle, Steven Lohnes