Patents by Inventor Andreas Berkefeld

Andreas Berkefeld 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).

  • Publication number: 20260257964
    Abstract: The present invention relates to a formulation for preparing an optical metal oxide layer.
    Type: Application
    Filed: March 21, 2024
    Publication date: September 3, 2026
    Inventors: Roy Schreiber, Andreas Berkefeld, Odelia Saadon
  • Publication number: 20260226627
    Abstract: The present invention relates to a method for preparing a composite, comprising at least the following steps (a) to (e): (a) providing a formulation onto a surface of a substrate; (b) applying baking at a starting temperature to the formulation; (c) increasing the temperature of the baking from the starting temperature to the 2nd temperature in the range from 100° C. to 400° C.; (d) optionally keeping the 2nd temperature; and (e) terminating the baking to obtain a composite.
    Type: Application
    Filed: January 30, 2024
    Publication date: August 6, 2026
    Inventors: Oliver Doll, Manuel Hamburger, Andreas Berkefeld, Simon Siemianowski, Sophia Buhbut, Stephan Wieder
  • Publication number: 20260209123
    Abstract: The present invention relates to a formulation for preparing an optical metal oxide layer, the formulation comprising polyoxometalates (POMs) complexed to metal oxide nanoparticles (NPs); a method for preparing an optical metal oxide layer using said formulation; and an optical device comprising said optical metal oxide layer.
    Type: Application
    Filed: December 19, 2023
    Publication date: July 23, 2026
    Inventors: Henning Seim, Oleg Chashchikhin, Nina Lidich, Hagai Arbell, Amir Holtzman, Andreas Berkefeld, Ira Weinstock, Nitai Leffler, Roy Schreiber
  • Publication number: 20260072348
    Abstract: A formulation for preparing an optical layer, preferably a particle-free optical layer, preferably to be used for nanoimprint lithography, more preferably to be used for direct UV nanoimprint lithography comprises compound A and a metal oxide precursor. Compound A is represented by the formula: X (NO2?)n, wherein X and n are defined herein. The formulation may exhibit at least one of properties as an advanced material or as a high performance material. The formulation may be used in the nanotechnology process to make semiconductor device/display device application, for example semiconductor chip, or a liquid crystal, quantum dot, OLED display fabricated on a substrate controlled by semiconductors.
    Type: Application
    Filed: September 10, 2025
    Publication date: March 12, 2026
    Applicant: Merck Patent GmbH
    Inventors: Andreas BERKEFELD, Sophia BUHBUT, Odelia SAADON, Roy SCHREIBER
  • Publication number: 20260015735
    Abstract: A method for preparing a composite comprising at least the following steps (a) to (c): (a) providing a formulation onto a surface of a substrate by a wet deposition process to obtain a partly or fully dried formulation; (b) applying a post bake to the formulation provided on the surface of the substrate to obtain a 1st composite; and (c) applying a post-treatment to the 1st composite to obtain a final composite or applying a post-treatment to the partly or fully dried formulation obtained in step (a).
    Type: Application
    Filed: September 23, 2025
    Publication date: January 15, 2026
    Inventors: Henning Seim, Sophia Buhbut, Roy Schreiber, Oliver Doll, Hagai Arbell, Manuel Hamburger, Frank Voges, Odelia Saadon, Andreas Berkefeld, Stephan Wieder
  • Publication number: 20250011185
    Abstract: Techniques disclosed herein relate to sol-gel materials that include at least one metal halide precursor and at least one alcohol. After being annealed, the metal in the metal halide is in at least two different oxidation states, both of which are stable and transparent to visible light. By producing a mixture of the same metal in multiple oxidation states that are all transparent to visible light, an amorphous state of the sol-gel material without any noticeable domain formation that would otherwise distribute stress locally and lead to voiding inside nano-gratings to be overcoated is obtained. Highly condensed states of the sol-gel have refractive index values in the 1.7-2.2 range, without sacrificing recessed-feature fill.
    Type: Application
    Filed: September 16, 2024
    Publication date: January 9, 2025
    Inventors: Alejo Lifschitz Arribio, Anthony Phan, Oliver Doll, Sophia Buhbut, Andreas Berkefeld, Simon Siemianowski, Manuel Hamburger