Patents by Inventor Siegfried Lichtenegger

Siegfried Lichtenegger 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).

  • Slider bearing for use with an apparatus comprising a vacuum chamber
    Patent number: 8598524
    Abstract: An apparatus for loading a sample into a particle-optical instrument that includes a slider bearing having a base plate in contact with the vacuum chamber at one side, said base plate showing a first through-hole in contact with the vacuum chamber, and a second plate, one side of the second plate in contact with the base plate, said second plate also showing a through-hole, where the faces of the base plate and the second plate facing each other are sufficiently smooth to form a non-elastomeric vacuum seal and where the second plate is a flexible plate and the face of the flexible plate opposite to the base plate is equipped to seal against a cup equipped to hold a sample.
    Type: Grant
    Filed: April 26, 2007
    Date of Patent: December 3, 2013
    Assignee: FEI Company
    Inventors: Johannes Antonius Hendricus Wilhelmus Gerardus Persoon, Andreas Theodorus Engelen, Siegfried Lichtenegger, Petrus Henricus Joannes Van Dooren
  • Compact Scanning Electron Microscope
    Publication number: 20100276592
    Abstract: A slider bearing for use with an apparatus comprising a vacuum chamber (11).
    Type: Application
    Filed: April 26, 2007
    Publication date: November 4, 2010
    Applicant: FEI COMPANY
    Inventors: Johannes Antonius Hendricus Wilhelmus Gerardus Persoon, Andreas Theodorus Engelen, Siegfried Lichtenegger, Petrus Henricus Joannes Van Dooren