Patents by Inventor Greg R. Hundt

Greg R. Hundt 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).

  • Surfactants for use in liquid suspensions of lightweight beads
    Patent number: 10723934
    Abstract: A method for suspending lightweight beads in a fluid includes combining lightweight beads, a fluid, and a surfactant to form a liquid additive. The liquid additive may be used to reduce the density of a wellbore fluid. The liquid additive or wellbore fluid can be combined with a cementitious material to form a lightweight cement composition.
    Type: Grant
    Filed: February 9, 2016
    Date of Patent: July 28, 2020
    Assignee: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Simone E.A. Lumsden, Sam J. Lewis, Greg R. Hundt
  • SURFACTANTS FOR USE IN LIQUID SUSPENSIONS OF LIGHTWEIGHT BEADS
    Publication number: 20180355236
    Abstract: A method for suspending lightweight beads in a fluid includes combining lightweight beads, a fluid, and a surfactant to form a liquid additive. The liquid additive may be used to reduce the density of a wellbore fluid. The liquid additive or wellbore fluid can be combined with a cementitious material to form a lightweight cement composition.
    Type: Application
    Filed: February 9, 2016
    Publication date: December 13, 2018
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Simone E.A. LUMSDEN, Sam J. LEWIS, Greg R. HUNDT
  • Dipyrromethenes and azadipyrromethenes as markers for petroleum products
    Patent number: 9222043
    Abstract: Marking a petroleum product includes adding a covert dye selected from the group consisting of azadipyrromethene dyes, dipyrromethene dyes, and any combination thereof to the petroleum product and distributing the dye in the petroleum product. A petroleum product selected for analysis may be spectroscopically analyzed for the presence of an azadipyrromethene dye, a dipyrromethene dye, or a combination thereof. A concentration of at least one azadipyrromethene or dipyrromethene dye present in the portion of the petroleum product may be determined to identify the petroleum product as counterfeit, adulterated, or authentic based on the determined concentration of the azadipyrromethene or dipyrromethene dye.
    Type: Grant
    Filed: September 20, 2010
    Date of Patent: December 29, 2015
    Assignee: Authentix, Inc.
    Inventors: Philip B. Forshee, Greg R. Hundt, Jeffrey L. Conroy
  • Dipyrromethenes and Azadipyrromethenes as Markers for Petroleum Products
    Publication number: 20110069307
    Abstract: Marking a petroleum product includes adding a covert dye selected from the group consisting of azadipyrromethene dyes, dipyrromethene dyes, and any combination thereof to the petroleum product and distributing the dye in the petroleum product. A petroleum product selected for analysis may be spectroscopically analyzed for the presence of an azadipyrromethene dye, a dipyrromethene dye, or a combination thereof. A concentration of at least one azadipyrromethene or dipyrromethene dye present in the portion of the petroleum product may be determined to identify the petroleum product as counterfeit, adulterated, or authentic based on the determined concentration of the azadipyrromethene or dipyrromethene dye.
    Type: Application
    Filed: September 20, 2010
    Publication date: March 24, 2011
    Applicant: AUTHENTIX, INC.
    Inventors: Philip B. Forshee, Greg R. Hundt, Jeffrey L. Conroy