Patents by Inventor Günter Sadowski

Günter Sadowski 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 shaped articles of niobium or tantalum by electrochemical etching
    Patent number: 7090763
    Abstract: Process for the production of shaped articles of niobium or tantalum by electrochemical etching of a niobium or tantalum sheet covered by a structured photoresist mask in an aqueous solution containing hydrofluoric acid, the etching being effected under electrochemical conditions under which strong noise is superposed on the etching current and the etching solution contains a water-soluble polymer.
    Type: Grant
    Filed: December 19, 2003
    Date of Patent: August 15, 2006
    Assignee: H. C. Starck GmbH
    Inventors: Marianne Gottschling, Josua Löffelholz, Mathias Albert, Günter Sadowski