Patents by Inventor Hans Wobking

Hans Wobking 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 electrolytic refining of copper
    Patent number: 4140596
    Abstract: A process for the electrolytic refining of metals, especially copper, in which the copper is deposited from an electrolyte on the cathode of an electrolytic cell which comprises periodically reversing the current with a forward pulse time of 2 to 9 seconds and a reverse pulse time of 0.1 to 0.45 seconds.
    Type: Grant
    Filed: July 22, 1977
    Date of Patent: February 20, 1979
    Assignee: Vereinigte Metallwerke Ranshofen-Berndorf Aktiengesellschaft
    Inventor: Hans Wobking