Patents by Inventor Christian Fehn

Christian Fehn 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).

  • ELECTRIC MOTOR AND VACUUM PUMP
    Publication number: 20230151814
    Abstract: An electric motor, in particular for a vacuum pump, with two magnetically coupled shafts. A correction force can be set on each shaft by means of adjusting magnet devices, whereby negative effects due to errors in the magnetic coupling can be compensated.
    Type: Application
    Filed: February 16, 2021
    Publication date: May 18, 2023
    Applicant: VACUUBRAND GMBH + CO KG
    Inventors: Tobias Müller, Christian Fehn, Frank Gitmans
  • Organosilicon Compound-Containing Compositions
    Publication number: 20080293606
    Abstract: Defoamer compositions contain a carrier oil and at least one particulate filler of less than 40°, measured with water as a surrounding phase. The defoamers are surprisingly more active than prior art defoamers.
    Type: Application
    Filed: November 15, 2006
    Publication date: November 27, 2008
    Applicant: WACKER CHEMIE AG
    Inventors: Holger Rautschek, Christian Fehn, Heinz Hoffmann
  • Vacuum pump
    Patent number: D936706
    Type: Grant
    Filed: April 20, 2020
    Date of Patent: November 23, 2021
    Assignee: VACUUBRAND GMBH + CO KG
    Inventors: Thorsten Swatosch, Christian Fehn