Patents by Inventor Logan Kiefer

Logan Kiefer 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).

  • ACTIVE ELECTROCHROMIC FILMS
    Publication number: 20200183243
    Abstract: An active electrochromic film (500) can include a transparent flexible substrate (510), a first transparent electrically conductive layer (520) in contact with the transparent flexible substrate (510), an active electrochromic gel layer (530) in contact with the transparent electrically conductive layer (520), and a second transparent electrically conductive layer (515) in contact with the active electrochromic gel layer (530) opposite from the first transparent electrically conductive layer (520). The active electrochromic gel layer (530) can include a viologen-based compound. The active electrochromic gel layer (530) can exhibit a high visible optical transparency in the absence of a voltage applied across the first and second transparent electrically conductive layers (520,515) and a low visible optical transparency under an applied voltage.
    Type: Application
    Filed: July 20, 2017
    Publication date: June 11, 2020
    Inventors: Logan Kiefer, Max Gallant, Nicholas Flinner, Christian Robert, Thomas Folke, Taylor D. Sparks