Patents by Inventor David D. ERTLE

David D. ERTLE 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).

  • THERMOPLASTIC PANEL TO SHIFT PERCEPTION OF COLOR TEMPERATURE OF LIGHT EMITTING DIODES
    Publication number: 20170212286
    Abstract: Color temperature actually emitted by a light emitting diode (LED) is perceived by a viewer of that LED to be altered because of the placement of a passive color temperature-shifting panel between the viewer and the LED. The panel is colored in a manner to cause a perception of a shift from one color temperature of the light emitting diode to another color temperature of the light emitting diode in the absence of any electrochromic, photochromic, or thermochromic material in the panel.
    Type: Application
    Filed: October 5, 2015
    Publication date: July 27, 2017
    Applicant: PolyOne Corporation
    Inventors: David PERSING, David D. ERTLE, Saleem SHAKIR, James STEPHENSON