Patents by Inventor Norbert Brachthaeuser

Norbert Brachthaeuser 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).

  • Cold-rolled narrow strip in the form of flat wire or profiled elements made of a high-strength steel
    Patent number: 10378681
    Abstract: A flat wire or a narrow strip has a profiled cross-section and is composed of a high-strength steel having the following composition (in weight-%): C 0.2-0.9%, Mn 12-25%, Si up to 0.5%, Al 0.5-2.0%, Cr 1.8-3.5%, S max. 0.005%, P max. 0.06%, N max. 0.1%, Mo max. 1.5%, B max. 0.01%, Ni max. 2.0%, Cu max. 2.0%, Ca max. 0.015%, Nb 0.02-0.35% and/or V 0.02-0.35%, and, as the remainder, iron and unavoidable, production-related contaminants. The wire or strip is cold-rolled and/or cold-profiled from wire-form precursor material, and has improved Rp0.2, Rm, and A80 mechanical values.
    Type: Grant
    Filed: July 16, 2014
    Date of Patent: August 13, 2019
    Assignee: C.D. Waelzholz GmbH
    Inventors: Hans-Toni Junius, Heino Buddenberg, Norbert Brachthaeuser, Dirk Wilmes