Patents by Inventor Stefan ALTMEYER

Stefan ALTMEYER 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).

  • ILLUMINABLE VEHICLE SUNROOF
    Publication number: 20260208671
    Abstract: A sunroof that can be illuminated by a light source, includes a first glass sheet and a second glass sheet, between which a lamination interlayer and a holographic layer including a thick reflection hologram are placed, the hologram being suitable for diffracting, towards the outside of the sunroof, via the second glass sheet, at least some ray s guided in the sunroof.
    Type: Application
    Filed: December 26, 2023
    Publication date: July 23, 2026
    Inventors: Jean-Baptiste LAUDEREAU, Mathieu BERARD, Emmanuel MIMOUN, Stefan ALTMEYER
  • Composite pane for a holographic head-up display
    Patent number: 12523873
    Abstract: A composite pane includes an outer pane having outer and inner surfaces, a first thermoplastic intermediate layer, a hologram element including a first set of holograms produced in one or more layers of a holographic material, wherein the first set of holograms includes a blue hologram that is activatable by blue light having a wavelength in a first range and is not responsive to light of other wavelengths, a green hologram that is activatable by green light having a wavelength in a second range and is not responsive to light of other wavelengths, and a red hologram that is activatable by red light having a wavelength in a third range and is not responsive to light of other wavelengths, an inner pane, and a color-selective optical filter for selective absorption of light.
    Type: Grant
    Filed: May 10, 2021
    Date of Patent: January 13, 2026
    Assignee: SAINT-GOBAIN SEKURIT FRANCE
    Inventors: Andreas Gomer, Jan Hagen, Daniel Krekel, Stefan Altmeyer
  • COMPOSITE PANE FOR A HOLOGRAPHIC HEAD-UP DISPLAY
    Publication number: 20230185088
    Abstract: A composite pane includes an outer pane having outer and inner surfaces, a first thermoplastic intermediate layer, a hologram element including a first set of holograms produced in one or more layers of a holographic material, wherein the first set of holograms includes a blue hologram that is activatable by blue light having a wavelength in a first range and is not responsive to light of other wavelengths, a green hologram that is activatable by green light having a wavelength in a second range and is not responsive to light of other wavelengths, and a red hologram that is activatable by red light having a wavelength in a third range and is not responsive to light of other wavelengths, an inner pane, and a color-selective optical filter for selective absorption of light.
    Type: Application
    Filed: May 10, 2021
    Publication date: June 15, 2023
    Inventors: Andreas GOMER, Jan HAGEN, Daniel KREKEL, Stefan ALTMEYER