Patents by Inventor Gerhard Hubmer

Gerhard Hubmer 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).

  • Method of producing ultrahigh-strength steel sheets and steel sheets therefor
    Patent number: 11970753
    Abstract: A method for producing an ultra-high-strength hot-rolled structural steel includes producing a steel alloy with a carbon content not greater than 0.2%, avoiding a diffusive transformation of the austenite by achieving a transformation delay through the addition of manganese, chromium, and boron, and casting the steel alloy. The cast steel alloy is heated and hot rolled to form a steel strip which is then immediately hardened and mechanically straightened to produce mobile dislocations, wherein the boron, manganese and chromium delay diffusive transformation from an austenite structure to achieve formation of a martensite structure during the hardening. The steel strip is then annealed at a temperature between 100 and 200° C.
    Type: Grant
    Filed: September 17, 2019
    Date of Patent: April 30, 2024
    Assignee: voestalpine Stahl GmbH
    Inventors: Markus Sonnleitner, Martin Klein, Gerhard Hubmer, Helmut Spindler
  • Method For Producing Ultrahigh-Strength Steel Sheets And Steel Sheet For Same
    Publication number: 20210317544
    Abstract: The invention relates to a method for producing an ultra-high-strength hot-rolled structural steel, wherein a steel is produced with a carbon content that is not greater than 0.
    Type: Application
    Filed: September 17, 2019
    Publication date: October 14, 2021
    Inventors: Markus Sonnleitner, Thomas Kurz, Martin Klein, Gerhard Hubmer, Helmut Spindler