Patents by Inventor Anthony E. Umlah

Anthony E. Umlah 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).

  • Functional and economical plastic can
    Patent number: 5071029
    Abstract: A plastic can, having a cylindrical sidewall with circumferential beads and a flange at each end is disclosed. The material of construction preferably includes a structural layer and a barrier layer; the thickness and dimensions of the wall permit lidding with metal lids and retorting of the filled can without leakage or collapse.
    Type: Grant
    Filed: October 23, 1990
    Date of Patent: December 10, 1991
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Anthony E. Umlah, Paul E. Titter, Sr., Vincent W. Keedy, Richard D. Kinard, Frank J. Atkins