Patents by Inventor Elod Gryenge

Elod Gryenge 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).

  • Hydrogen evolution inhibiting additives for zinc electrowinning
    Publication number: 20050011769
    Abstract: A cetylpyridinium salt, cetylpyridinium chloride (CPC) is used as a hydrogen evolution inhibitor (a current efficiency improver) in a commercial zinc electrowinning process. Zinc electrowinning compositions containing a) antimony and b) antimony and glue were tested. Adding CPC at a 0.05 mM concentration to the electrowinning liquor resulted in increased current efficiency for both electrolytes.
    Type: Application
    Filed: August 13, 2002
    Publication date: January 20, 2005
    Inventors: Elod Gryenge, Joey Jung, Klaus Oehr, Steven Splinter, Colin Oloman