Patents by Inventor Lutz Wieser

Lutz Wieser 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 preparing and replenishing an electrolyte in an electrolyte bath
    Patent number: 6451194
    Abstract: A process and apparatus for supplying a soluble metal compound to an electrolyte solution uses a powder wetting device in a loop from a working tank. The powder wetting machine supplies the powdered metal compound directly into the electrolyte solution which rapidly dissolves to replenish the electrolyte compound during the treating process. The process and apparatus are particularly suitable for replenishing the metal salts consumed during an electroplating process.
    Type: Grant
    Filed: March 28, 2001
    Date of Patent: September 17, 2002
    Assignee: Andritz-Patentverwaltungs-Gesellschaft m.b.H.
    Inventors: Gerald Maresch, Herbert Track, Lutz Wieser
  • Process and apparatus for preparing and replenishing an electrolyte in an electrolyte bath
    Publication number: 20010017266
    Abstract: A process and apparatus for supplying a soluble metal compound to an electrolyte solution uses a powder wetting device in a loop from a working tank. The powder wetting machine supplies the powdered metal compound directly into the electrolyte solution which rapidly dissolves to replenish the electrolyte compound during the treating process. The process and apparatus are particularly suitable for replenishing the metal salts consumed during an electroplating process.
    Type: Application
    Filed: March 28, 2001
    Publication date: August 30, 2001
    Inventors: Gerald Maresch, Herbert Track, Lutz Wieser
  • Apparatus for preparing and replenishing an electrolyte in an electrolyte bath
    Patent number: 6231729
    Abstract: An apparatus for supplying a soluble metal compound to an electrolyte solution uses a powder wetting device in a loop from a working tank. The powder wetting machine supplies the powdered metal compound directly into the electrolyte solution which rapidly dissolves to replenish the electrolyte compound during the treating process. The apparatus is particularly suitable for replenishing the metal salts consumed during an electroplating process.
    Type: Grant
    Filed: June 18, 1999
    Date of Patent: May 15, 2001
    Assignee: Andritz-Patentverwaltungs-Gesellschaft m.b.H.
    Inventors: Gerald Maresch, Herbert Track, Lutz Wieser