Patents by Inventor David Z. Webster

David Z. Webster 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).

  • Polystyrene-based structural materials
    Patent number: 11155969
    Abstract: The disclosure features structural tiles and methods for forming such tiles, the tiles including a tile body featuring one or more polystyrene materials, and a coating featuring an epoxy resin and an aggregate material, disposed on at least one surface of the tile body, where the structural tile has a dry coefficient of kinetic friction of at least 0.75 and a wet coefficient of kinetic friction of at least 0.70, and where the dry coefficient of kinetic friction is larger than the wet coefficient of kinetic friction by 0.05 or less.
    Type: Grant
    Filed: April 26, 2017
    Date of Patent: October 26, 2021
    Inventors: Daniel P. Gaines, David Z. Webster
  • Polystyrene-Based Structural Materials
    Publication number: 20180313041
    Abstract: The disclosure features structural tiles and methods for forming such tiles, the tiles including a tile body featuring one or more polystyrene materials, and a coating featuring an epoxy resin and an aggregate material, disposed on at least one surface of the tile body, where the structural tile has a dry coefficient of kinetic friction of at least 0.75 and a wet coefficient of kinetic friction of at least 0.70, and where the dry coefficient of kinetic friction is larger than the wet coefficient of kinetic friction by 0.05 or less.
    Type: Application
    Filed: April 26, 2017
    Publication date: November 1, 2018
    Inventors: Daniel P. Gaines, David Z. Webster