Patents by Inventor Rainer Giesen

Rainer Giesen 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).

  • Process for monitoring and controlling nitrating processes with the aid of an online spectrometer
    Patent number: 7227147
    Abstract: A process for monitoring and/or controlling a nitrating process, having the following steps: measuring inline infrared spectra of nitric acid content in a reaction mixture stream downstream of the nitration reaction, preferably near-infrared spectra, evaluating the measured spectra by means of a computer-assisted, matrix-specific calibration model for the purpose of determining the content of nitric acid, transmitting the results of spectrometric examination to a process control system, inputting the results of spectrometric examination for the purpose of specifying the content of nitric acid in the acid phase into a regulator (224) for control of the metering (207,217) of nitric acid into a nitrating reactor.
    Type: Grant
    Filed: February 2, 2004
    Date of Patent: June 5, 2007
    Assignee: Bayer MaterialScience AG
    Inventors: Claus Riehle, Marcus Brand, Frank Hilgers, Klaus Jäger, Rainer Giesen, Heinz-Josef Hamacher, Udo Wolf
  • Process for monitoring and controlling nitrating processes with the aid of an online spectrometer
    Publication number: 20040164247
    Abstract: A process for monitoring and/or controlling a nitrating process, having the following steps:
    Type: Application
    Filed: February 2, 2004
    Publication date: August 26, 2004
    Inventors: Claus Riehle, Marcus Brand, Frank Hilgers, Klaus Jager, Rainer Giesen, Heinz-Josef Hamacher, Udo Wolf