Patents by Inventor Gilbert Wuethrich

Gilbert Wuethrich 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).

  • Apparatus and methods for optical emission spectroscopy
    Patent number: 8873044
    Abstract: The invention provides a spark generator for generating a spark for optical emission spectroscopy (OES), wherein the spark has a current waveform comprising a first modulated portion which comprises a plurality of relatively high current and high gradient peaks of variable amplitude and/or inter-peak duration and a second modulated portion of relatively low current and low gradient which is substantially without modulated peaks. The spark is preferably generated from two or more programmable current sources. The invention also provides an optical emission spectrometer comprising the spark generator and a method of optical emission spectroscopy using the spark generator.
    Type: Grant
    Filed: December 4, 2009
    Date of Patent: October 28, 2014
    Assignee: Thermo Fisher Scientific (Ecublens) Sarl
    Inventors: Francois Vincent, Jean-Pierre Sola, Gilbert Wuethrich
  • Apparatus and Methods for Optical Emission Spectroscopy
    Publication number: 20110228269
    Abstract: The invention provides a spark generator for generating a spark for optical emission spectroscopy (OES), wherein the spark has a current waveform comprising a first modulated portion which comprises a plurality of relatively high current and high gradient peaks of variable amplitude and/or inter-peak duration and a second modulated portion of relatively low current and low gradient which is substantially without modulated peaks. The spark is preferably generated from two or more programmable current sources. The invention also provides an optical emission spectrometer comprising the spark generator and a method of optical emission spectroscopy using the spark generator.
    Type: Application
    Filed: December 4, 2009
    Publication date: September 22, 2011
    Inventors: Francois Vincent, Jean-Pierre Sola, Gilbert Wuethrich