Patents by Inventor Charles Lee Lindsay

Charles Lee Lindsay 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).

  • Feedback circuit for a display sign and method
    Patent number: 9451681
    Abstract: A feedback circuit for a display sign has a number of lights. A resistor is coupled in series with the lights. A voltage measuring circuit is coupled to the resistor.
    Type: Grant
    Filed: August 13, 2009
    Date of Patent: September 20, 2016
    Assignee: Skyline Products, Inc.
    Inventors: Charles Lee Lindsay, Charles Hunter Bush
  • Feedback Circuit for a Display Sign and Method
    Publication number: 20110037604
    Abstract: A feedback circuit for a display sign has a number of lights. A resistor is coupled in series with the lights. A voltage measuring circuit is coupled to the resistor.
    Type: Application
    Filed: August 13, 2009
    Publication date: February 17, 2011
    Inventors: Charles Lee Lindsay, Charles Hunter Bush
  • Feedback circuit for a display sign and method
    Patent number: 7602305
    Abstract: A feedback circuit for a display sign has a number of lights. A resistor is coupled in series with the lights. A voltage measuring circuit is coupled to the resistor.
    Type: Grant
    Filed: November 15, 2005
    Date of Patent: October 13, 2009
    Assignee: Skyline Products, Inc.
    Inventors: Charles Lee Lindsay, Charles Hunter Bush