Patents by Inventor Alexander Freising

Alexander Freising 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).

  • Electrical component
    Patent number: 7821358
    Abstract: An electrical component with a filter circuit is specified that includes a first bandstop filter and a second bandstop filter. The first bandstop filter includes at least one resonator operating with acoustic waves and has a first stop band. The second bandstop filter includes LC elements and has a second stop band that lies at least one octave higher than the first stop band.
    Type: Grant
    Filed: November 14, 2008
    Date of Patent: October 26, 2010
    Assignee: EPCOS AG
    Inventors: Christian Block, Alexander Freising, Christian Korden
  • Electrical Component
    Publication number: 20090128260
    Abstract: An electrical component with a filter circuit is specified that includes a first bandstop filter and a second bandstop filter. The first bandstop filter includes at least one resonator operating with acoustic waves and has a first stop band. The second bandstop filter includes LC elements and has a second stop band that lies at least one octave higher than the first stop band.
    Type: Application
    Filed: November 14, 2008
    Publication date: May 21, 2009
    Inventors: Christian Block, Alexander Freising, Christian Korden
  • Microwave ceramic filter with improved coupling and method for the production
    Publication number: 20050116795
    Abstract: In a microwave ceramic filter having a ceramic base body with metallized bores and an exterior metallization that is closed all over with the exception of the end face, metallic structures in the form of metallized recesses in the end face are formed on the non-metallized end face. These can be inserted as coupling structures and decoupling structures. The capacitance can be simply adjusted via the depth of the recesses. The size and the position of the contact surfaces for these coupling structures can be independently created on an exterior surface of the ceramic body.
    Type: Application
    Filed: March 25, 2004
    Publication date: June 2, 2005
    Inventors: Bernhard Reichel, Christian Faistauer, Alexander Freising