Patents by Inventor Robert Porter Cross

Robert Porter Cross 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).

  • Retrofit light emitting diode tube
    Patent number: 7053557
    Abstract: An LED light tube for replacement for fluorescent light tubes includes an elongated cylindrical transparent envelope, a base cap at each end of the envelope, and at least one LED device in electrical communication with the base cap. The LED light tube is adapted for use in troffer light fixtures.
    Type: Grant
    Filed: September 25, 2003
    Date of Patent: May 30, 2006
    Inventors: Robert Porter Cross, Robert Hartwell Cross, Jeffrey Parker Cross
  • Retrofit light emitting diode tube
    Patent number: 6936968
    Abstract: An LED light tube for replacement for fluorescent light tubes includes an elongated cylindrical transparent envelope, a base cap at each end of the envelope, and at least one LED device in electrical communication with the base cap. The LED light tube is adapted for use in troffer light fixtures.
    Type: Grant
    Filed: November 30, 2001
    Date of Patent: August 30, 2005
    Assignee: Mule Lighting, Inc.
    Inventors: Robert Porter Cross, Robert Hartwell Cross, Jeffery Parker Cross
  • Retrofit light emitting diode tube
    Publication number: 20040062041
    Abstract: An LED light tube for replacement for fluorescent light tubes includes an elongated cylindrical transparent envelope, a base cap at each end of the envelope, and at least one LED device in electrical communication with the base cap. The LED light tube is adapted for use in troffer light fixtures.
    Type: Application
    Filed: September 25, 2003
    Publication date: April 1, 2004
    Inventors: Robert Porter Cross, Robert Hartwell Cross, Jeffrey Parker Cross