Patents by Inventor Andreas Portmann

Andreas Portmann 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-level diagnostic apparatus with a lift system
    Patent number: 7914737
    Abstract: A new multi-level apparatus is disclosed for high throughput processing of samples. The apparatus does not need interruptions for reloading disposables.
    Type: Grant
    Filed: June 27, 2005
    Date of Patent: March 29, 2011
    Assignee: Roche Molecular Systems, Inc.
    Inventors: Renato Baumann, Roland Bernet, Eric Misselwitz, Andreas Portmann, Ulrich Schlapfer, Rolf Schneebeli, Reto Schorno
  • Multi-level diagnostic apparatus with a lift system
    Publication number: 20060002820
    Abstract: A new apparatus is disclosed which is useful for high throughput of samples without necessity of interrupting any analysis performed on said apparatus for reloading of disposables.
    Type: Application
    Filed: June 27, 2005
    Publication date: January 5, 2006
    Applicant: ROCHE MOLECULAR SYSTEMS, INC.
    Inventors: Renato Baumann, Roland Bernet, Eric Misselwitz, Andreas Portmann, Ulrich Schlaepfer, Rolf Schneebeli, Reto Schorno
  • Photo-acoustic gas sensor
    Patent number: 5841017
    Abstract: In a photo-acoustic gas sensor having a measuring cell, a lamp, a photo-diode, a gas-permeable diaphragm and a microphone, a device is included for monitoring the gas-permeable diaphragm and the microphone. The device is operated in an explosion-proof manner. Intentionally, for diagnostic purposes, an artificial pressure modulation is generated in the measuring cell. The pressure modulation is converted by the microphone into electrical monitoring signals which are amplified by an amplifier circuit and assigned to preset ranges by a microprocessor, for determining the functional condition of the diaphragm and the microphone, and of microphone sensitivity. Depending on the range assigned to the monitoring signal, an output signal is generated indicating a fault in the microphone and/or the diaphragm. In the event of long-term drift in microphone sensitivity, a calibration is performed in which gas concentration values are re-calculated and stored in an EEPROM.
    Type: Grant
    Filed: March 24, 1997
    Date of Patent: November 24, 1998
    Assignee: Cerberus AG
    Inventors: Mourad Baraket, Mauro Feltre, Martin Forster, Rene Lenggenhager, Andreas Portmann, Georges Tenchio