Patents by Inventor Felix Hellmuth

Felix Hellmuth 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).

  • Gassing agitator for light metal melts
    Patent number: 5804135
    Abstract: A gassing agitator for light metal melts made of thermal shock-resistant ceramic is described which consists of minimally machined ceramic tubes that are connected to one another using the insert and lock technique.
    Type: Grant
    Filed: October 9, 1996
    Date of Patent: September 8, 1998
    Assignee: Bayer Aktiengesellschaft
    Inventors: Bernhard Freudenberg, Felix Hellmuth