Patents by Inventor Dirk Hopf

Dirk Hopf 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).

  • Vacuum pump with control unit
    Patent number: 8651838
    Abstract: A vacuum pump that includes a housing, a control unit including control elements for controlling electronic and electrical components located in the inner chamber of the housing, and a separation member for separating the inner chamber in which an underpressure prevails, from an environment in which the vacuum pump is located and including a printed circuit board having elements for conducting electrical current and voltage in the inner chamber of the pump housing.
    Type: Grant
    Filed: March 28, 2007
    Date of Patent: February 18, 2014
    Assignee: Pfeiffer Vacuum GmbH
    Inventors: Timo Birkenstock, Dirk Hopf, Tobias Stoll
  • Vacuum pump with control unit
    Publication number: 20070237650
    Abstract: A vacuum pump that includes a housing, a control unit including control elements for controlling electronic and electrical components located in the inner chamber of the housing, and a separation member for separating the inner chamber in which an underpressure prevails, from an environment in which the vacuum pump is located and including a printed circuit board having elements for conducting electrical current and voltage in the inner chamber of the pump housing.
    Type: Application
    Filed: March 28, 2007
    Publication date: October 11, 2007
    Inventors: Timo Birkenstock, Dirk Hopf, Tobias Stoll