Patents by Inventor Ewa Dominika PTAK

Ewa Dominika PTAK 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).

  • DEVICE FOR THE REGULATION OF LIGHT TRANSMISSION
    Publication number: 20240134218
    Abstract: The present invention relates to devices for the regulation of light transmission and in particular to switchable windows. The present invention in particular relates to window elements which comprise electrically switchable optical cells with a switchable layer containing a liquid-crystalline medium having a clearing point which is within the working temperature of the window element. The present invention also relates to liquid-crystalline media for use in the window elements.
    Type: Application
    Filed: December 9, 2021
    Publication date: April 25, 2024
    Applicant: MERCK PATENT GMBH
    Inventors: Michael JUNGE, Andreas BEYER, Ewa Dominika PTAK