Patents by Inventor Douglas Reginald Luff

Douglas Reginald Luff 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).

  • Detonators
    Patent number: 3977328
    Abstract: A detonator operated by signals derived from a piezoelectric transducer element when subjected to mechanical pressure wherein the piezoelectric transducer element has a resistivity of less than about 5 .times. 10 inches .OMEGA.cm.
    Type: Grant
    Filed: October 1, 1973
    Date of Patent: August 31, 1976
    Assignee: The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland
    Inventors: Kenneth Raymond Brown, Rodney Lane, Douglas Reginald Luff