Patents by Inventor Paul Averell William Lansdell

Paul Averell William Lansdell 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).

  • Metal finishes
    Patent number: 6989087
    Abstract: A method of forming a surface finish of trivalent chromium on metal or plastics substrates by electrodeposition from an aqueous plating solution of trivalent chromium ions in which the trivalent chromium is deposited on a layer of silver or silver alloy whereby the color and/or corrosion resistance of the trivalent chromium is comparable to surface finishes of hexavalent chromium. The invention avoids the health and safety risks associated with the electrodeposition of hexavalent chromium surface finishes.
    Type: Grant
    Filed: December 10, 2001
    Date of Patent: January 24, 2006
    Assignee: Kohler Mira Ltd.
    Inventors: Paul Averell William Lansdell, John Peter George Farr
  • Metal Finishes
    Publication number: 20040040859
    Abstract: A method of forming a surface finish of trivalent chromium on metal or plastics substrates by electrodeposition from an aqueous plating solution of trivalent chromium ions in which the trivalent chromium is deposited on a layer of silver or silver alloy whereby the color and/or corrosion resistance of the trivalent chromium is comparable to surface finishes of hexavalent chromium. The invention avoids the health and safety risks associated with the electrodeposition of hexavalent chromium surface finishes.
    Type: Application
    Filed: June 9, 2003
    Publication date: March 4, 2004
    Inventors: Paul Averell William Lansdell, John Peter Farr