Patents by Inventor Steven P. Givens

Steven P. Givens 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).

  • Method for controlling permeability of subterranean formations
    Patent number: 4282928
    Abstract: In the recovery of hydrocarbon materials from subterranean formations, the simultaneous production or loss of other fluids such as water is inhibited by the selective introduction into the subterranean porous structure of discrete spheroidal microgels of a water-swollen or water-swellable, crosslinked polymer such as crosslinked polyacrylamide.
    Type: Grant
    Filed: September 17, 1979
    Date of Patent: August 11, 1981
    Assignee: The Dow Chemical Co.
    Inventors: Charles J. McDonald, John V. Van Landingham, Steven P. Givens
  • Method for controlling permeability of subterranean formations
    Patent number: 4182417
    Abstract: In the recovery of hydrocarbon materials from subterranean formations, the simultaneous production or loss of other fluids such as water is inhibited by the selective introduction into the subterranean porous structure of discrete spheroidal microgels of a water-swollen or water-swellable, crosslinked polymer such as crosslinked polyacrylamide.
    Type: Grant
    Filed: July 8, 1977
    Date of Patent: January 8, 1980
    Assignee: The Dow Chemical Company
    Inventors: Charles J. McDonald, John V. Van Landingham, Steven P. Givens