Patents by Inventor Hans Dohmen

Hans Dohmen 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).

  • Spectroscopic analysis process for plastic mixtures
    Patent number: 5206510
    Abstract: The invention relates to a process for the analysis of plastic mixtures by infrared transmission spectroscopy in which the spectra are run while the samples are rotated. This measure improves the accuracy and reproducibility of the spectra and, hence, the determination of individual components of the plastic mixture.
    Type: Grant
    Filed: November 6, 1991
    Date of Patent: April 27, 1993
    Assignee: Bayer Aktiengesellschaft
    Inventors: Udo Wolf, Hans Dohmen, Jurgen Diefendahl