Patents by Inventor Siegfried Lassmann

Siegfried Lassmann 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).

  • Thermal insulating material
    Patent number: 4927702
    Abstract: A heat insulating structure of ceramic material for high temperatures is made up of a plurality of reflective layers in order to provide protection against the action of heat for short periods of time. The reflective layers are made up of a substrate of impregnated, fired ceramic fiber and a noble metal layer. The heat insulating structure is made up of a plurality of such parallel spaced reflective layers.
    Type: Grant
    Filed: February 9, 1988
    Date of Patent: May 22, 1990
    Assignee: Man Technologie AG
    Inventors: August Muhlratzer, Karin Handrick, Siegfried Lassmann, Alfred Hirt
  • Method and article for the production of porous fiber bats
    Patent number: 4761323
    Abstract: A method for the production of soot filters using felt-like or other bats as filter elements, which are made up of loose refractory fibers. In order to bond the fibers together and to anchor then in place, the filter element made up of the fibers is coated by CVD or precipitation from a solution to give an amorphous coating. The coating is also refractory. It bonds the fibers together at their crossovers.
    Type: Grant
    Filed: October 10, 1986
    Date of Patent: August 2, 1988
    Assignee: Man Technologie GmbH
    Inventors: August Muhlratzer, Siegfried Lassmann, Roland Bertinger, Herbert Gutwein, Renate Sanden