Patents by Inventor Ralf Brinkmann

Ralf Brinkmann 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).

  • Apparatus for the generation of laser pulses in the US-time range
    Patent number: 5805622
    Abstract: Disclosed is an apparatus for generating laser pulses, which has a Q-switched solid state laser and at least one nonlinear crystal, and the application of this apparatus for removing material in the biomedical field. The present invention is distinguished by the nonlinear crystal being disposed inside the resonator of the solid state laser and by a pulse prolongation unit determining the pulse form and duration of the light pulse developing in the resonator.
    Type: Grant
    Filed: April 8, 1997
    Date of Patent: September 8, 1998
    Assignee: Medizinisches Laserzentrum Lubeck GmbH
    Inventor: Ralf Brinkmann
  • Pulse stretched solid-state laser lithotripter
    Patent number: 5496306
    Abstract: A method of laser lithotripsy is disclosed that utilizes pulse stretched Q-switched solid state lasers in conjunction with relatively small diameter optical fibers to achieve effective breakup of calculi located within the body, such as kidney and gall stones.
    Type: Grant
    Filed: November 24, 1992
    Date of Patent: March 5, 1996
    Assignee: Light Age, Inc.
    Inventors: Ralf Engelhardt, Ralf Brinkmann, John C. Walling, Donald F. Heller