Patents by Inventor Alexa Nagel

Alexa Nagel 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).

  • Analysis system for reagent-free determination of the concentration of an analyte in living tissue
    Patent number: 7277740
    Abstract: The present invention is generally directed towards a system for reagent-free determination of the concentration of an analyte in vivo. The system comprises a light transmitter for generating monochromatic primary light, a scattered-light percutaneous sensor which includes an inbound light guide and a detection light guide, a wavelength-selective detection device that is connected to the detection light guide for detection of Raman-scattered components of the secondary light and an evaluation device for determining the concentration of the analyte from the Raman-scattered components of the secondary light.
    Type: Grant
    Filed: March 12, 2004
    Date of Patent: October 2, 2007
    Assignee: Roche Diagnostics Operations, Inc.
    Inventors: Daniel Rohleder, Wolfgang Petrich, Alexa Nagel
  • Analysis system for reagent-free determination of the concentration of an analyte in living tissue
    Publication number: 20040260162
    Abstract: The present invention is generally directed towards a system for reagent-free determination of the concentration of an analyte in vivo. The system comprises a light transmitter for generating monochromatic primary light, a scattered-light percutaneous sensor which includes an inbound light guide and a detection light guide, a wavelength-selective detection device that is connected to the detection light guide for detection of Raman-scattered components of the secondary light and an evaluation device for determining the concentration of the analyte from the Raman-scattered components of the secondary light.
    Type: Application
    Filed: March 12, 2004
    Publication date: December 23, 2004
    Inventors: Daniel Rohleder, Wolfgang Petrich, Alexa Nagel
  • Glucose meter
    Patent number: D493536
    Type: Grant
    Filed: November 13, 2002
    Date of Patent: July 27, 2004
    Assignee: Roche Diagnostics Corporation
    Inventors: Thomas Jaeck, Alexa Nagel, Bernd Eisenbarth, Maria van Gelder, Silke Vogt, James West, Craig Wightman