Patents by Inventor Guenter Berthel

Guenter Berthel 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).

  • Method and array for detecting the position of a plane scanned with a laser scanner
    Patent number: 6594006
    Abstract: A method and an arrangement for detecting the position of the plane XY of an object, which plane XY is to be scanned, and for its positioning in the focal plane X′Y′ of a laser scanner, preferably for a laser scanning microscope. According to the disclosure, it is provided in a method of the type described above that, after a rough orientation of the object carried out by placing on an object holder, a laser beam is directed successively in time to at least three different points P1, P2 . . . Pn located in the scan plane XY of the object and, in doing so, each of the reflections proceeding from the points P1, P2 . . .
    Type: Grant
    Filed: March 16, 2001
    Date of Patent: July 15, 2003
    Assignee: Carl Zeiss Jena GmbH
    Inventors: Dirk Muehlhoff, Guenther Rudolph, Stefan Schmidt, Gerhard Doering, Guenter Berthel, Thomas Hartmann
  • Arrangement for detecting biomolecular reactions and interactions
    Patent number: 6483588
    Abstract: An arrangement for the detection of biomolecular reactions and interactions using the RS screening method and comprises a specimen plate or microtiter plate (PP or MTP), a white light source with subsequently arranged illumination beam path, a splitter plate on which the PP or the MTP is set for generating a detection beam path, and optical means for imaging the measurement beam path and reference beam path on a spatially resolving detector array of a CCD camera which is connected with an evaluating unit or with a computer for determining measurement values.
    Type: Grant
    Filed: June 25, 1999
    Date of Patent: November 19, 2002
    Assignee: Carl Zeiss Jena GmbH
    Inventors: Dieter Graefe, Gunther Elender, Wolfgang Grau, Hans-Juergen Dobschal, Guenter Berthel
  • Microtiter plate
    Patent number: 6018388
    Abstract: A microtiter plate is formed of a bottom plate which is transparent for light and a cavity plate which is open at two surfaces facing one another and which has a matrix-shaped arrangement of cavities or wells. The bottom plate and cavity plate are fixedly connected with one another in a liquid-tight manner. The bottom plate has a thickness of from 0.01 mm to approximately 5 mm and has planar surfaces without structures. It has, at its first surface facing the wells, a layer system formed of at least two layers with different indexes of refraction. The bottom plate is provided at its second surface remote of the wells with a coating which sharply reduces the reflectivity of this surface. The bottom plate is recessed into the lower part of the cavity plate in such a way that it does not project over a support surface located in the cavity plate.
    Type: Grant
    Filed: February 18, 1999
    Date of Patent: January 25, 2000
    Inventors: Bernd Nawracala, Manfred Berndt, Guenter Gauglitz, Gunther Elender, Dieter Graefe, Guenter Berthel