Patents by Inventor Hermann Rathert

Hermann Rathert 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).

  • Method of optimizing the control of the mass transfer zone in distillation columns
    Patent number: 5643419
    Abstract: In the method of optimizing the control of the mass transfer zone in distillation columns by their characteristic areas which are dependent on pressure and heating steam, the temperature is measured on two different theoretical plates in the mass transfer zone of the column. The measured values are compared with one of the characteristic curves of the characteristic areas, which represent the nominal values for the temperature and the distance between the points where the thermometers are installed in the column.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: July 1, 1997
    Assignee: Hoechst Aktiengesellschaft
    Inventor: Hermann Rathert
  • Method of optimizing the control of the mass transfer zone in distillation columns
    Patent number: 5487815
    Abstract: A method of optimizing the control of the mass transfer zone in distillation columns. Distillation columns are control optimized by controlling the steam feed, reflux, or pressure by determining the deviation from nominal values of characteristic curves of characteristic areas determined by measuring two different theoretical plates in the mass transfer zone of the column.
    Type: Grant
    Filed: February 2, 1994
    Date of Patent: January 30, 1996
    Assignee: Hoechst Aktiengesellschaft
    Inventor: Hermann Rathert