Patents by Inventor Michael Steinwand

Michael Steinwand 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).

  • Multi-step bioassays on modular microfluidic application platforms
    Patent number: 7250260
    Abstract: Apparatus and method for performing sequential bioassays with microfluidic transfers.
    Type: Grant
    Filed: February 16, 2005
    Date of Patent: July 31, 2007
    Assignee: Applera Corporation
    Inventors: H. Michael Wenz, Alexander Jung, Simone Guenther, Michael Steinwand, Timothy G. Geiser
  • Quantitative determination of analytes in a heterogeneous system
    Patent number: 7011955
    Abstract: The invention concerns a method for quantitative or qualitative determination of an analyte or its interaction or reaction kinetics in a system with at least two different phases, comprising the step of taking at least one measurement signal from at least one of the phases, whereby the different phases are present in parallel when taking the signal and whereby each measurement signal is attributed to one of at least two phases. In addition, the invention concerns a sample carrier, in particular for use in the method constituting the invention with one or more wells. The sample carrier is characterized by the fact that at least a portion of the sample carrier at least in the range of one or more wells is coated with fluorescence-quenching material.
    Type: Grant
    Filed: January 27, 2000
    Date of Patent: March 14, 2006
    Assignee: Universitaet Tuebingen
    Inventors: Ivo Stemmler, Andreas Brecht, Gunter Gauglitz, Michael Steinwand
  • Multi-step bioassays on modular microfluidic application platforms
    Publication number: 20060035243
    Abstract: Apparatus and method for performing sequential bioassays with microfluidic transfers.
    Type: Application
    Filed: February 16, 2005
    Publication date: February 16, 2006
    Applicant: Applera Corporation
    Inventors: H. Wenz, Alexander Jung, Simone Guenther, Michael Steinwand, Timothy Geiser
  • Light-scanning device
    Patent number: 6211989
    Abstract: A light scanning device for exciting and detecting secondary light, especially fluorescent light, on a sample, comprising a light emission device for emitting exciting light with a wavelength suitable for exciting secondary light on or in said sample, a focussing optics for focussing the exciting light on a subarea of said sample, a sample holding device for releasably holding the sample, a detection unit comprising a detection optics for the secondary light emitted by the sample in response to excitation and a detector device for converting the detected and imaged secondary light into electric signals. In the case of conventional known light scanning devices, scanning is carried out by means of a deflection unit consisting of tilting mirrors. Due to the long path of the light beam, positioning inaccuracies of the tilting mirrors result in major position inaccuracies of the scanning ray bundle on the surface of the sample.
    Type: Grant
    Filed: December 17, 1999
    Date of Patent: April 3, 2001
    Assignee: Bodenseewerk Perkin-Elmer GmbH
    Inventors: Jürgen Wulf, Michael Steinwand, Henry Klemm