Patents by Inventor Gerhard Then

Gerhard Then 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 controlling a production process
    Patent number: 7813839
    Abstract: A production process such as an isocyanate production process, conducted with a production facility having (a) at least two incoming streams, b) at least one exit stream and c) at least one inner recycling stream is controlled by adjusting at least one incoming stream amount by means of regulating controls to control the exit stream concentration and/or amount.
    Type: Grant
    Filed: January 22, 2007
    Date of Patent: October 12, 2010
    Assignee: Bayer MaterialScience AG
    Inventors: Jochen Mahrenholtz, Stefan Wershofen, Gerhard Then, Sabine Pegel, Jun Wang, Erman Sevinc, Richard H. Guhl
  • Process for controlling a production process
    Publication number: 20080147208
    Abstract: A production process such as an isocyanate production process, conducted with a production facility having (a) at least two incoming streams, b) at least one exit stream and c) at least one inner recycling stream is controlled by adjusting at least one incoming stream amount by means of regulating controls to control the exit stream concentration and/or amount.
    Type: Application
    Filed: January 22, 2007
    Publication date: June 19, 2008
    Inventors: Jochen Mahrenholtz, Stefan Wershofen, Gerhard Then, Sabine Pegel, Jun Wang, Erman Sevinc, Richard H. Guhl