Patents by Inventor Sean Northrup

Sean Northrup 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).

  • Interference filter film for display applications
    Patent number: 11347098
    Abstract: An optical filter for a display includes a filter film with at least one optical filter layer. The filter layer blocks a band of optical wavelengths and is transparent for optical wavelengths outside the band. The filter film has a thickness within the range of 25 microns through 1 mm. The filter film may include one or more laminate layers that are optically transparent in the wavelengths of the band blocked by the filter layer. The filter film may include one or more layers of liquid crystal polymers in layered contact with one or more transparent electrode layers and one or more layers of polymers in layered contact with the one or more layers of liquid crystal polymers.
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: May 31, 2022
    Inventors: Esmaeil Banaei, Sean Northrup
  • INTERFERENCE FILTER FILM FOR DISPLAY APPLICATIONS
    Publication number: 20180341146
    Abstract: An optical filter for a display includes a filter film with at least one optical filter layer. The filter layer blocks a band of optical wavelengths and is transparent for optical wavelengths outside the band. The filter film has a thickness within the range of 25 microns through 1 mm. The filter film may include one or more laminate layers that are optically transparent in the wavelengths of the band blocked by the filter layer. The filter film may include one or more layers of liquid crystal polymers in layered contact with one or more transparent electrode layers and one or more layers of polymers in layered contact with the one or more layers of liquid crystal polymers.
    Type: Application
    Filed: November 17, 2016
    Publication date: November 29, 2018
    Inventors: Esmaeil Banaei, Sean Northrup