Patents by Inventor Michael H. Griffin

Michael H. Griffin 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).

  • Zinc-copper based alloy and castings made therefrom
    Patent number: 5945066
    Abstract: A Zn--Cu based alloy is disclosed including from about 11 to about 50 wt. % of Cu, from about 0.1 to about 10 wt. % of Al, from about 0.01 to about 1.0 wt. % of Mg, and from about 0.001 to about 0.1 wt. % of at least one member of the group consisting of Ti, Pb, Sn, Cd, Ni, Mn, Cr, Fe and mixtures thereof; and the balance being Zn. The Ti component may be added via an Al--Ti alloy. This alloy yields high-part-number castings especially useful in the automotive parts field.
    Type: Grant
    Filed: December 30, 1997
    Date of Patent: August 31, 1999
    Inventors: James D. Griffin, David A. Griffin, Michael H. Griffin