Patents by Inventor Richard L. Stoneberg

Richard L. Stoneberg 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).

  • Patent number: 4400487
    Abstract: A coating composition useful for providing a substrate with a coating having a textured appearance is composed of, on a resin solids basis, a resinous mixture of:(a) from about 40 percent to about 85 percent by weight of a film-forming fluorocarbon resin having a particle size of from about 0.1 microns to about 5 microns;(b) from 0 percent to about 50 percent by weight of an acrylic resin selected from polymers and copolymers of acrylic acid or methacrylic acid esters and copolymers of acrylic monomers containing hydroxyl or amide groups; and(c) from about 3 percent to about 50 percent by weight of particulate fluorocarbon resin having a particle size ranging from about 20 microns to about 3500 microns, said particulate fluorocarbon resin being fused with the film-forming fluorocarbon resin upon curing to provide said textured appearance.The aforesaid coating composition can be either a clear or pigment coating composition.
    Type: Grant
    Filed: December 31, 1981
    Date of Patent: August 23, 1983
    Assignee: PPG Industries, Inc.
    Inventors: Richard L. Stoneberg, Raymond R. Stec
  • Patent number: 4314004
    Abstract: Methods of providing substrates with a durable coating comprises applying a pigmented composition of fluorocarbon resin and acrylic resin to the substrate followed by application of a clear composition of flurocarbon resin and acrylic resin. Articles produced by the methods are especially useful wherever outdoor exposure is encountered.
    Type: Grant
    Filed: June 26, 1980
    Date of Patent: February 2, 1982
    Assignee: PPG Industries, Inc.
    Inventor: Richard L. Stoneberg