Patents by Inventor Bernd Hohmann

Bernd Hohmann 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 the production of 1, 2-butadiene
    Patent number: 6175049
    Abstract: The production of 1,2-butadiene in purities of at least 85% becomes possible by means of a process in which a polymerization-inhibitor-containing C4 hydrocarbon fraction is subjected to at least one fractional distillation.
    Type: Grant
    Filed: August 17, 1999
    Date of Patent: January 16, 2001
    Assignee: EC Erdolchemie GmbH
    Inventors: Arnd St{umlaut over (u)}we, J{umlaut over (u)}rgen Linnemann, Jens Herwig, Christian Gabel, Bernd Hohmann, Joachim Grub