Patents by Inventor Frank Sticher

Frank Sticher 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).

  • Lightweight valve
    Patent number: 6354258
    Abstract: The invention relates to a hollow-stem valve for an internal combustion engine. The valve has a ratio of wall thickness to stem diameter of less than 1:3. The aim of the invention is to minimize the deformation of the valve head. To this end, the valve disk rests directly against the stem.
    Type: Grant
    Filed: August 1, 2000
    Date of Patent: March 12, 2002
    Assignee: Mahle Ventiltrieb GmbH
    Inventors: Marcus Abele, Thomas Glas, Andreas Von Känel, Walter Krepulat, Martin Lechner, Christoph Steinmetz, Frank Sticher