Patents by Inventor Berthold Haefner

Berthold Haefner 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 separating off alkenes during methylchlorosilane distillation
    Patent number: 5264084
    Abstract: A process for separating alkenes from a methylchlorosilane mixture by adding at least a stoichiometric amount of hydrogen chloride necessary for saturating the alkenes in the methylchlorosilane mixture and thereafter removing resulting chloroalkanes by distillation.
    Type: Grant
    Filed: August 21, 1992
    Date of Patent: November 23, 1993
    Assignee: Wacker-Chemie GmbH
    Inventors: Anton Schinabeck, Berthold Haefner, Bernd Pachaly