Patents by Inventor Jeremiah J. Fitzgibbob

Jeremiah J. Fitzgibbob 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).

  • Sintered spherical pellets containing clay as a major component useful for gas and oil well proppants
    Patent number: 4894285
    Abstract: Sintered, spherical composite pellets or particles comprising one or more clays as a major component and bauxite, alumina, or mixtures thereof, are described, along with the process for their manufacture. The pellets may have an alumina-silica (Al.sub.2 O.sub.3 -SiO.sub.2) ratio from about 9:1 to about 1:1 by weight. The use of such pellets in hydraulic fracturing of subterranean formations is also described.
    Type: Grant
    Filed: December 2, 1987
    Date of Patent: January 16, 1990
    Inventor: Jeremiah J. Fitzgibbob