Patents by Inventor Hans Lüth

Hans Lüth 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).

  • Fet sensor with specially configured gate electrode for the highly sensitive detection of analytes
    Patent number: 7632670
    Abstract: Disclosed is a sensor comprising a substrate, a source contact region, a drain contact region, and the gate oxide of a transistor. A gate electrode is disposed between the gate oxide and a detection electrode made of a nonconducting material. The contact area Asens between the gate electrode and the detection electrode is larger than the contact area Agate between the gate electrode and the gate oxide, whereby the receptor can be immobilized on the surface of the detection electrode in a technically simple manner while the small contact area Agate between the gate electrode and the transistor provides for high sensitivity for detecting the analyte. According to the inventive method for detecting at least one analyte, at least one analyte is brought into contact with a receptor immobilized at the detection electrode so as to modify the electrical charge at the surface of the detection electrode. The analyte is detected by detecting the modified voltage in the transistor.
    Type: Grant
    Filed: December 14, 2002
    Date of Patent: December 15, 2009
    Assignee: Forschungszentrum Julich GmbH
    Inventors: Andreas Offenhäusser, Margarete Odenthal, Michael Goryll, Jürgen Moers, Hans Lüth
  • Process for making a color selective Si detector array
    Patent number: 6632699
    Abstract: A multiplicity of components form a photodiode array on a substrate. Each of the components consists of a transistor of the p-n-p type with the outermost p-doped layer being transformed into an optical filter by control of the anodic etching operation utilizing transistor characteristics of the respective transistor. The result can provide red, blue and green filters in a color camera.
    Type: Grant
    Filed: November 2, 2000
    Date of Patent: October 14, 2003
    Assignee: Forschungszentrum Julich GmbH
    Inventors: Michel Marso, Michael Krüger, Michael Berger, Markus Thönissen, Hans Lüth
  • Method for the production of a porous layer
    Patent number: 6413408
    Abstract: An interference filter having a layer with an area consisting of a porous material extending from the surface of the layer to the interior, the dimensions of the porous layer area in a direction normal to the layer surface have different values to provide for varying reflection or, respectively, transmission characteristics.
    Type: Grant
    Filed: June 19, 1999
    Date of Patent: July 2, 2002
    Assignee: Forschungszentrum Jülieh GmbH
    Inventors: Michael Berger, Michael Krüger, Markus Thönissen, Rüdiger Arens-Fischer, Hans Lüth, Walter Lang, Wolfgang Theiss, Stefan Hilbrich
  • Process for producing a porous layer by an electrochemical etching process
    Patent number: 6398943
    Abstract: A porous layer produced from silicon, germanium or aluminum by applying a wedge-shaped mask to the surface of the layer and by controlled elecrochemical etching along the mask.
    Type: Grant
    Filed: June 14, 2000
    Date of Patent: June 4, 2002
    Assignee: Forschungszentrum Julich GmbH
    Inventors: Rüdiger Arens-Fischer, Michael Berger, Michael Krüger, Markus Thönissen, Hans Lüth
  • Color-selective SI detector array
    Patent number: 6255709
    Abstract: A multiplicity of components form a photodiode array on a substrate. Each of the components consists of a transistor of the p-n-p type with the outermost p-doped layer being transformed into an optical filter by control of the anodic etching operation utilizing transistor characteristics of the respective transistor. The result can provide red, blue and green filters in a color camera.
    Type: Grant
    Filed: September 3, 1998
    Date of Patent: July 3, 2001
    Assignee: Forschungszentrum Julich GmbH
    Inventors: Michel Marso, Michael Krüger, Michael Berger, Markus Thönissen, Hans Lüth