Patents by Inventor James F. Bittle

James F. Bittle 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).

  • Reflective nanofiber lighting devices
    Patent number: 9228716
    Abstract: A fiber-based reflective lighting device and a housed lighting device. The fiber-based reflective lighting device which includes a source configured to generate a primary light, and a substrate having a nanocomposite mat of reflective fibers having a diameter less than 1,000 nm which diffusively reflects light upon illumination with at least the primary light. The nanocomposite mat includes a reflectance-enhancing coating conformally disposed around an outer surface of the fibers, having a refractive index different from the reflective fibers, and which increases a reflectance of the substrate in the visible spectrum. The lighting device includes a light exit configured to emanate the reflected light. The housed lighting device includes a housing, a source configured to generate primary light and direct the primary light into the housing, the reflective nanocomposite mat of reflective fibers, and a light exit in the housing configured to emanate the reflected light from the housing.
    Type: Grant
    Filed: June 1, 2012
    Date of Patent: January 5, 2016
    Assignee: RESEARCH TRIANGLE INSTITUTE
    Inventors: James Lynn Davis, Kimberly A. Guzan, Karmann C. Mills, Michael K. Lamvik, James F. Bittle, Laura Haines
  • REFLECTIVE NANOFIBER LIGHTING DEVICES
    Publication number: 20140119026
    Abstract: A fiber-based reflective lighting device and a housed lighting device. The fiber-based reflective lighting device which includes a source configured to generate a primary light, and a substrate having a nanocomposite mat of reflective fibers having a diameter less than 1,000 nm which diffusively reflects light upon illumination with at least the primary light. The nanocomposite mat includes a reflectance-enhancing coating conformally disposed around an outer surface of the fibers, having a refractive index different from the reflective fibers, and which increases a reflectance of the substrate in the visible spectrum. The lighting device includes a light exit configured to emanate the reflected light. The housed lighting device includes a housing, a source configured to generate primary light and direct the primary light into the housing, the reflective nanocomposite mat of reflective fibers, and a light exit in the housing configured to emanate the reflected light from the housing.
    Type: Application
    Filed: June 1, 2012
    Publication date: May 1, 2014
    Applicant: RESEARCH TRIANGLE INSTITUTE
    Inventors: James Lynn Davis, Kimberly A. Guzan, Karmann C. Mills, Michael K. Lamvik, James F. Bittle, Laura Haines