Patents by Inventor Roger H. Warren

Roger H. Warren 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).

  • Shaped charges and their manufacture
    Patent number: 5331895
    Abstract: A shaped charge liner formed of a solid metallic material having a fine grain size of the order of 25 microns or less. The material can be, for example, copper, uranium, tantalum or an alloy showing superplasticity and having a density greater than about 5 gm/cm.sup.3. The liner can be made by subjecting the material to repeated cycles of cold working, annealing at just above the recrystallization temperature, and quenching.
    Type: Grant
    Filed: October 11, 1990
    Date of Patent: July 26, 1994
    Assignee: The Secretary of State for Defence in Her Britanic Majesty's Government of the United Kingdon of Great Britain and Northern Ireland
    Inventors: Brian Bourne, Peter N. Jones, Roger H. Warren