Patents Assigned to Drogen Incorporated
  • Method for in situ assembly of charge for controlled shooting of wells
    Patent number: 4002119
    Abstract: Controlled fracturing and loosening of geological formations with energy derived from the reaction of a specially shaped charge of alkali metal with water.
    Type: Grant
    Filed: July 16, 1973
    Date of Patent: January 11, 1977
    Assignee: Drogen Incorporated
    Inventor: Henry H. Halley, Jr.