Patents by Inventor Juergen Heering

Juergen Heering 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 removing thallium from lead bullion
    Patent number: 5171550
    Abstract: The thallium content of lead bullion is decreased in that iron chloride is stirred into the lead bullion so as to form a salt slag which contains thallium.
    Type: Grant
    Filed: February 7, 1992
    Date of Patent: December 15, 1992
    Assignee: Metallgesellschaft AG
    Inventors: Lutz Deininger, Jiadong Hang, Juergen Heering, Reinhard Hoehn, Joachim Krueger