Patents by Inventor Thomas W Powell

Thomas W Powell 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).

  • Oxidized polyethylene rheological additives for oil-based drilling fluids
    Patent number: 11926786
    Abstract: The invention describes the use of both low-density oxidized polyethylene wax (LDoxPE) and high-density oxidized polyethylene wax (HDoxPE) as rheological additives in oil-based drilling fluids (OBF). This includes both 100% oil and invert emulsion drilling fluids in which the continuous phase is diesel oil, mineral oil, synthetic esters, synthetic olefins, or other organic fluid.
    Type: Grant
    Filed: January 13, 2021
    Date of Patent: March 12, 2024
    Assignee: RheoMinerals LLC
    Inventor: Thomas W Powell
  • OXIDIZED POLYETHYLENE RHEOLOGICAL ADDITIVES FOR OIL-BASED DRILLING FLUIDS
    Publication number: 20230061326
    Abstract: The invention describes the use of both low-density oxidized polyethylene wax (LDoxPE) and high-density oxidized polyethylene wax (HDoxPE) as rheological additives in oil-based drilling fluids (OBF). This includes both 100% oil and invert emulsion drilling fluids in which the continuous phase is diesel oil, mineral oil, synthetic esters, synthetic olefins, or other organic fluid.
    Type: Application
    Filed: January 13, 2021
    Publication date: March 2, 2023
    Applicant: RheoMinerals LLC
    Inventor: Thomas W Powell
  • Allergen absorbent and blocking aerosol composition
    Patent number: 5017361
    Abstract: An allergen absorbent and blocking aerosol composition for topical application to the skin comprises a highly activated organophilic clay of the smectite type, ion exchanged with a quaternary ammonium compound having aryl or alkyl groups in the range of from 10 to 22 carbon atoms, and a vehicle comprising one or more long-chain hydrocarbons or volatile silicone oils. The composition is preferably in the form of an aerosol composition additionally comprising an aerosol propellant. The composition is applied to the skin, preferably by spraying, to block and absorb the allergenic oils of toxic plants such as poison ivy and the like.
    Type: Grant
    Filed: August 8, 1989
    Date of Patent: May 21, 1991
    Assignee: United Catalysts, Inc.
    Inventors: Thomas W. Powell, Jr., Anthony A. Schulz, Gary W. Beall
  • Allergen absorbent and blocking aerosol composition
    Patent number: 4861584
    Abstract: An allergen absorbent and blocking aerosol composition for topical application to the skin comprises a highly activated organophilic clay of the smectite type, ion exchanged with a quaternary ammonium compound having aryl or alkyl groups in the range of from 10 to 22 carbon atoms, and a vehicle comprising one or more long-chain hydrocarbons or volatile silicone oils. The composition is preferably in the form of an aerosol composition additionally comprising an aerosol propellant. The composition is applied to the skin, preferably by spraying, to block and absorb the allergenic oils of toxic plants such as poison ivy and the like.
    Type: Grant
    Filed: September 23, 1987
    Date of Patent: August 29, 1989
    Assignee: United Catalysts, Inc.
    Inventors: Thomas W. Powell, Jr., Anthony A. Schulz, Gary W. Beall