Patents by Inventor Robert D. Gregson

Robert D. Gregson 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).

  • Emulsion explosive composition
    Patent number: 4490195
    Abstract: An emulsion explosive composition comprising an oxygen-supplying salt component as a discontinuous phase, an organic medium forming a continuous phase and a stabilizer which comprises a polycyclic hydrocarbon. Suitable stabilizers include sterols, such as cholesterol. The compositions, which may also include a conventional emulsifier, exhibit small diameter cap-sensitivity and improved storage characteristics.
    Type: Grant
    Filed: October 11, 1983
    Date of Patent: December 25, 1984
    Assignee: Imperial Chemical Industries PLC
    Inventors: John Cooper, David S. Reid, Colin A. Mumme-Young, Robert D. Gregson