Patents by Inventor Armin Helldoerfer

Armin Helldoerfer 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).

  • Armor plate, armor plate composite and armor
    Patent number: 12247811
    Abstract: An armor plate consists of a material comprising a cermet, and the armor plate has a density in the range from 5.0 to 6.5 g/cm3. An armor plate composite and an armor are provided as well.
    Type: Grant
    Filed: March 14, 2022
    Date of Patent: March 11, 2025
    Assignee: KENNAMETAL INC.
    Inventors: Manfred Wolf, Armin Helldoerfer, Werner Parlow, Thomas Theuerkauf
  • Cemented carbide compositions and applications thereof
    Patent number: 12152294
    Abstract: Sintered cemented carbides are described herein exhibiting enhanced high temperature properties without dramatic losses in bending strength. In some embodiments, a sintered cemented carbide composition comprises tungsten carbide, a metallic binder phase comprising at least one metal of the iron group, and at least one solid solution carbide phase comprising tantalum (Ta) and molybdenum (Mo), wherein a value of (Mo/Ta) in the sintered cemented carbide composition is from 0.3-100, and the sintered cemented carbide composition has a transverse rupture strength of at least 4000 MPa.
    Type: Grant
    Filed: October 13, 2023
    Date of Patent: November 26, 2024
    Assignee: KENNAMETAL INC.
    Inventors: Manfred Wolf, Armin Helldoerfer
  • CEMENTED CARBIDE COMPOSITIONS AND APPLICATIONS THEREOF
    Publication number: 20240035125
    Abstract: Sintered cemented carbides are described herein exhibiting enhanced high temperature properties without dramatic losses in bending strength. In some embodiments, a sintered cemented carbide composition comprises tungsten carbide, a metallic binder phase comprising at least one metal of the iron group, and at least one solid solution carbide phase comprising tantalum (Ta) and molybdenum (Mo), wherein a value of (Mo/Ta) in the sintered cemented carbide composition is from 0.3-100, and the sintered cemented carbide composition has a transverse rupture strength of at least 4000 MPa.
    Type: Application
    Filed: October 13, 2023
    Publication date: February 1, 2024
    Inventors: Manfred Wolf, Armin Helldoerfer
  • Cemented carbide compositions and applications thereof
    Patent number: 11821062
    Abstract: Sintered cemented carbides are described herein exhibiting enhanced high temperature properties without dramatic losses in bending strength. In some embodiments, a sintered cemented carbide composition comprises tungsten carbide, a metallic binder phase comprising at least one metal of the iron group, and at least one solid solution carbide phase comprising tantalum (Ta) and molybdenum (Mo), wherein a value of (Mo/Ta) in the sintered cemented carbide composition is from 0.3-100, and the sintered cemented carbide composition has a transverse rupture strength of at least 4000 MPa.
    Type: Grant
    Filed: April 27, 2020
    Date of Patent: November 21, 2023
    Assignee: KENNAMETAL INC.
    Inventors: Manfred Wolf, Armin Helldoerfer
  • CEMENTED CARBIDE COMPOSITIONS AND APPLICATIONS THEREOF
    Publication number: 20200340084
    Abstract: Sintered cemented carbides are described herein exhibiting enhanced high temperature properties without dramatic losses in bending strength. In some embodiments, a sintered cemented carbide composition comprises tungsten carbide, a metallic binder phase comprising at least one metal of the iron group, and at least one solid solution carbide phase comprising tantalum (Ta) and molybdenum (Mo), wherein a value of (Mo/Ta) in the sintered cemented carbide composition is from 0.3-100, and the sintered cemented carbide composition has a transverse rupture strength of at least 4000 MPa.
    Type: Application
    Filed: April 27, 2020
    Publication date: October 29, 2020
    Inventors: Manfred WOLF, Armin Helldoerfer