TREA

Heinrich-Hertz-Institut fuer Nachrichtentechnik Berlin GmbH.

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  • Berlin, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Optical tunable grid-assisted add/drop filter in codirectional mode...
    • Patent number 6,810,182
    • Issue date Oct 26, 2004
    • Heinrich-Hertz-Institut fuer Nachrichtentechnik Berlin GmbH
    • Norbert Grote
    • G02 - OPTICS
  • Information Patent Grant

    Device for determining a fixation point
    • Patent number 6,553,281
    • Issue date Apr 22, 2003
    • Heinrich-Hertz-Institut fuer Nachrichtentechnik Berlin GmbH
    • Jin Liu
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    Device for superposing optical signals with different wavelengths
    • Patent number 6,347,166
    • Issue date Feb 12, 2002
    • Heinrich-Hertz-Institut fuer Nachrichtentechnik Berlin GmbH
    • Berndt Kuhlow
    • G02 - OPTICS
  • Information Patent Grant

    Integrated optical beam spread transformer
    • Patent number 6,240,233
    • Issue date May 29, 2001
    • Heinrich-Hertz-Institut fuer Nachrichtentechnik Berlin GmbH
    • Carl Michael Weinert
    • G02 - OPTICS
  • Information Patent Grant

    Thermo-optical switch
    • Patent number 6,215,918
    • Issue date Apr 10, 2001
    • Heinrich-Hertz-Institut fuer Nachrichtentechnik Berlin GmbH
    • Norbert Keil
    • G02 - OPTICS
  • Information Patent Grant

    Q-switched semiconductor laser
    • Patent number 6,215,805
    • Issue date Apr 10, 2001
    • Heinrich-Hertz-Institut fuer Nachrichtentechnik Berlin GmbH
    • Bernd Sartorius
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Self-pulsing multi-section laser
    • Patent number 6,122,306
    • Issue date Sep 19, 2000
    • Heinrich-Hertz-Institut fuer Nachrichtentechnik Berlin GmbH.
    • Bernd Sartorius
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Optoelectronic circuit
    • Patent number 6,061,481
    • Issue date May 9, 2000
    • Heinrich-Hertz-Institut fuer Nachrichtentechnik Berlin GmbH.
    • Helmut Heidrich
    • G02 - OPTICS
  • Information Patent Grant

    Optical frequency generator
    • Patent number 6,008,931
    • Issue date Dec 28, 1999
    • Heinrich-Hertz-Institut fuer Nachrichtentechnik Berlin GmbH.
    • Clemens von Helmolt
    • G02 - OPTICS
  • Information Patent Grant

    Wavelength converter
    • Patent number 5,940,207
    • Issue date Aug 17, 1999
    • Heinrich-Hertz-Institut fuer Nachrichtentechnik Berlin GmbH.
    • Klaus Weich
    • H01 - BASIC ELECTRIC ELEMENTS