Patents by Inventor Guido Hoff

Guido Hoff 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).

  • Patent number: 12594656
    Abstract: A drill bit for percussion drilling or impact drilling use for cutting reinforcing steel in concrete, wherein the drill bit has a substantially hollow-cylindrical carrier body extending along a geometric drill bit axis, wherein the carrier body has at least one chisel tooth with a substantially radially extending first chisel edge. The first chisel edge is arranged in a middle portion of the chisel tooth, in particular precisely centrally, in the circumferential direction, and the chisel tooth has a second chisel edge extending substantially tangentially to the circumferential direction of the drill bit.
    Type: Grant
    Filed: November 2, 2023
    Date of Patent: April 7, 2026
    Assignee: Heller Tools GmbH
    Inventors: Rainer Lampe, Torsten Thiel, Guido Hoff
  • Publication number: 20240149421
    Abstract: The invention concerns a drill bit for percussion drilling or impact drilling use for cutting reinforcing steel in concrete, wherein the drill bit has a substantially hollow-cylindrical carrier body extending along a geometric drill bit axis, wherein the carrier body has at least one chisel tooth with a substantially radially extending first chisel edge. It is proposed that the first chisel edge is arranged in a middle portion of the chisel tooth, in particular precisely centrally, in the circumferential direction, and the chisel tooth has a second chisel edge extending substantially tangentially to the circumferential direction of the drill bit.
    Type: Application
    Filed: November 2, 2023
    Publication date: May 9, 2024
    Inventors: Rainer Lampe, Torsten Thiel, Guido Hoff