Patents by Inventor Walter Entner

Walter Entner 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: 20240148481
    Abstract: A method of producing a multicolor glass-ceramic blank (10) for dental purposes. A glass-ceramic blank (10) is produced from at least a first material powder (18) and a second material powder (20), wherein the first material powder (18) and the second material powder (20) are different-colored and wherein at least one of first material powder (18) and second material powder (20) has nanoparticles (14) and/or glass-ceramic particles (16). The first material powder (18) and the second material powder (20) are introduced into a mold (22) in order to form at least one powder mixture aggregate (26). Additionally, the powder mixture aggregate (26) is compressed by hot pressing in order to form the glass-ceramic blank (10). A multicolor glass-ceramic blank (10) is obtainable by such a method and the multicolor glass-ceramic blank (10) is used as dental material.
    Type: Application
    Filed: November 6, 2023
    Publication date: May 9, 2024
    Inventors: Lars ARNOLD, Walter ENTNER
  • Publication number: 20240150213
    Abstract: A multiple mold (42) for production of at least two glass-ceramic blanks. The glass-ceramic blanks are for dental purposes and are produced from at least two powder blanks by hot pressing. The multiple mold (42) includes a frame (48) that defines at least sections of a receiving volume (50) for the at least two powder blanks. Additionally provided is a separating element (52) which is disposed within the receiving volume (50) and divides the receiving volume (50) into at least two subvolumes, each of which is designed to accommodate one of the at least two powder blanks. Also described are the use of the multiple mold (42) for production of a glass-ceramic blank for dental purposes, a compression apparatus and a continuous system for production of glass-ceramic blanks for dental purposes.
    Type: Application
    Filed: November 6, 2023
    Publication date: May 9, 2024
    Inventors: Lars ARNOLD, Walter ENTNER
  • Patent number: 8622377
    Abstract: A holder for affixing a mill blank for the manufacture of a dental article in a housing of a milling unit of a CAD/CAM system, wherein the holder includes a joining surface for joining to the mill blank, a securing shaft having at least one securing surface for securing to a housing of a milling unit of a CAD/CAM system, wherein the securing shaft comprises an essentially polygonal shape with at least two lateral surfaces, wherein at least two of the lateral surfaces are arranged adjacent to each other and extend at right angles to each other; and wherein the securing surface, in cross-sectional view, extends substantially perpendicular to a radius of the securing shaft extending essentially through the center of the securing surface and comprises a width that is less than the width of a lateral surface.
    Type: Grant
    Filed: August 20, 2009
    Date of Patent: January 7, 2014
    Assignee: Ivoclar Vivadent AG
    Inventors: Erich Konrad, Walter Entner
  • Publication number: 20110042880
    Abstract: A holder for affixing a mill blank for the manufacture of a dental article in a housing of a milling unit of a CAD/CAM system, wherein the holder includes a joining surface for joining to the mill blank, a securing shaft having at least one securing surface for securing to a housing of a milling unit of a CAD/CAM system, wherein the securing shaft comprises an essentially polygonal shape with at least two lateral surfaces, wherein at least two of the lateral surfaces are arranged adjacent to each other and extend at right angles to each other; and wherein the securing surface, in cross-sectional view, extends substantially perpendicular to a radius of the securing shaft extending essentially through the center of the securing surface and comprises a width that is less than the width of a lateral surface.
    Type: Application
    Filed: August 20, 2009
    Publication date: February 24, 2011
    Applicant: IVOCLAR VIVADENT, AG
    Inventors: Erich Konrad, Walter Entner
  • Patent number: D618807
    Type: Grant
    Filed: August 20, 2009
    Date of Patent: June 29, 2010
    Assignee: Ivoclar Vivadent, AG
    Inventors: Erich Konrad, Walter Entner