Patents by Inventor Larry A. Wolfe

Larry A. Wolfe 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).

  • Composite silica proppant material
    Patent number: 6753299
    Abstract: An improved lightweight and highly permeable proppant composition for use in increasing the productivity of a gas or oil well. The proppant composition includes equal amounts by weight of uncalcined bauxite, uncalcined shale and quartz, held together with a binder formed of wollastonite and talc in an amount of less than 10% by weight of the composition. The proppant composition has an alumina content of less than 25% by weight of the composition and a silica content of over 45% by weight of the composition.
    Type: Grant
    Filed: November 9, 2001
    Date of Patent: June 22, 2004
    Assignee: Badger Mining Corporation
    Inventors: Eugene P. Lunghofer, Larry A. Wolfe
  • Composite silica proppant material
    Publication number: 20030148893
    Abstract: An improved lightweight and highly permeable proppant composition for use in increasing the productivity of a gas or oil well. The proppant composition includes equal amounts by weight of uncalcined bauxite, uncalcined shale and quartz, held together with a binder formed of wollastonite and talc in an amount of less than 10% by weight of the composition. The proppant composition has an alumina content of less than 25% by weight of the composition and a silica content of over 45% by weight of the composition.
    Type: Application
    Filed: November 9, 2001
    Publication date: August 7, 2003
    Inventors: Eugene P. Lunghofer, Larry A. Wolfe