Patents by Inventor Tristana Duvallet

Tristana Duvallet 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).

  • CONCRETE FORMULATION FOR SEALING AND PLUGGING OIL OR GAS WELLS FOR ABANDONMENT
    Publication number: 20230146738
    Abstract: An improved oil or gas well cement for penetrating, sealing and plugging wells to be abandoned. The cement fill includes (a) a cement component including a calcium sulfoaluminate cement and a Portland cement having a ratio by weight of Portland cement to calcium sulfoaluminate cement ranging from 1/19 to ? and (b) an aggregate component with gradation spanning 1,200 microns to 5 microns. Further an improved oil or gas well microcellular cement for penetrating sealing and completely filling wells to be abandoned that includes (a) a cement component including a calcium sulfoaluminate cement and a Portland cement having a ratio by weight of Portland cement to calcium sulfoaluminate cement ranging from 1/19 to ? and (b) an aggregate component with gradation spanning 200 microns to 5 microns and (c) a foaming agent.
    Type: Application
    Filed: December 29, 2022
    Publication date: May 11, 2023
    Inventors: Thomas Robl, Robert B. Jewell, Anne Oberlink, Tristana Duvallet
  • Concrete repair coating
    Patent number: 11560334
    Abstract: A concrete and asphalt repair coating formulation includes a cement component and an aggregate component. The cement component includes a calcium sulfoaluminate cement and a Portland cement. The aggregate component includes coarse aggregates between 125-500 microns in diameter and fine aggregates between 5-62.5 microns in diameter.
    Type: Grant
    Filed: October 18, 2019
    Date of Patent: January 24, 2023
    Assignee: University of Kentucky Research Foundation
    Inventors: Thomas Robl, Robert B. Jewell, Anne Oberlink, Tristana Duvallet
  • USE OF ANIMAL BY-PRODUCTS FOR CEMENT PRODUCTION
    Publication number: 20220298067
    Abstract: A raw meal and clinker are provided based on animal by-products, such as bone ash. The resulting cement contains clinker phases such as: tricalcium phosphate (TCP), calcium sulfoaluminate (CSA), calcium aluminate phases (CA, CA2, CA6, C12A7, among others), hydroxyapatite (HA), and minor phases (anhydrite, lime, among others).
    Type: Application
    Filed: March 16, 2022
    Publication date: September 22, 2022
    Inventors: Tristana Duvallet, Robert B. Jewell
  • COMPOSITE MINERALIZERS/FLUXES FOR THE PRODUCTION OF ALITE/CALCIUM SULFOALUMINATE CLINKERS
    Publication number: 20210238090
    Abstract: A cement clinker composition incorporates calcium fluoride and iron oxide to reduce firing temperatures and increase strength.
    Type: Application
    Filed: February 1, 2021
    Publication date: August 5, 2021
    Inventors: Tristana Duvallet, Thomas Robl, Robert Jewell
  • CONCRETE REPAIR COATING
    Publication number: 20200123058
    Abstract: A concrete and asphalt repair coating formulation includes a cement component and an aggregate component. The cement component includes a calcium sulfoaluminate cement and a Portland cement. The aggregate component includes coarse aggregates between 125-500 microns in diameter and fine aggregates between 5-62.5 microns in diameter.
    Type: Application
    Filed: October 18, 2019
    Publication date: April 23, 2020
    Inventors: Thomas Robl, Robert B. Jewell, Anne Oberlink, Tristana Duvallet
  • Hybrid cement clinker and cement made from that clinker
    Patent number: 8986444
    Abstract: A hybrid cement clinker incorporates specific ranges of clinker phases and falls within specific modulus values as set forth and described in this document.
    Type: Grant
    Filed: February 14, 2014
    Date of Patent: March 24, 2015
    Assignee: University of Kentucky Research Foundation
    Inventors: Thomas Robl, Tristana Duvallet, Robert Rathbone, Yongmin Zhou
  • HYBRID CEMENT CLINKER AND CEMENT MADE FROM THAT CLINKER
    Publication number: 20140311386
    Abstract: A hybrid cement clinker incorporates specific ranges of clinker phases and falls within specific modulus values as set forth and described in this document.
    Type: Application
    Filed: February 14, 2014
    Publication date: October 23, 2014
    Applicant: University of Kentucky Research Foundation
    Inventors: Thomas Robl, Tristana Duvallet, Robert Rathbone, Yongmin Zhou