Patents by Inventor Robert Jeffrey

Robert Jeffrey 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).

  • Hydraulic fracturing of ground formations
    Publication number: 20050056428
    Abstract: A method of hydraulic fracturing of ground formations. Such formations may be natural rock, earth or mineral formations and may be located on land or under a sea bed.
    Type: Application
    Filed: September 10, 2004
    Publication date: March 17, 2005
    Inventor: Robert Jeffrey
  • Post
    Patent number: D343693
    Type: Grant
    Filed: May 19, 1992
    Date of Patent: January 25, 1994
    Assignee: Australian Wire Industries Proprietary Ltd.
    Inventor: Robert Jeffrey