Patents by Inventor Franz Marks

Franz Marks 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).

  • Use of a steel alloy for making tubes to produce compressed gas containers or for making formed structures in light weight steel construction
    Publication number: 20050006011
    Abstract: A method of using a steel alloy, the steel alloy having a composition containing in mass %, 0.09-0.13% C, 0.10-0.50% Si, 1.10-1.80% Mn, max. 0.02% P, max. 0.02% S, 1.00-2.00% Cr, 0.20-0.60% Mo, 0.02-0.06 Al, 0.10-0.25% V, the balance iron and incidental impurities, includes the steps of forming a tube from the steel alloy; air hardening the tube in the presence of inert gas, and incorporating the tube in the production of a compressed gas container. The steel composition may also be used as material for producing formed structures in light weight steel construction.
    Type: Application
    Filed: August 5, 2004
    Publication date: January 13, 2005
    Applicants: BENTELER AUTOMOBILTECHNIK GMBH, BENTELER STAHL/ROHR GMBH
    Inventors: Gerhard Beer, Rainer Hartmann, Franz Marks, Georg Grundmeier, Thomas Sauberlich