Patents by Inventor Johanna Obreque Contreras

Johanna Obreque Contreras 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).

  • Procedure to use the tailings as construction material giving it waterproofing characteristics and reduce its cracking
    Patent number: 11453990
    Abstract: A process to use the tailings as construction material giving it waterproofing characteristics and reduce its cracking is presented. For example, to use the mining tailing as a construction material conceding to it impermeabilizing features, reducing its cracking and increasing its resistance. The main stages of said process are to apply a calcium-containing solution to the soil to be treated; apply a solution that that contains calcite-producing bacteria, to the soil to be treated; optionally, add maltodextrin; and stabilize, compact and dry off the mix.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: September 27, 2022
    Assignee: CULTIVOS HIDROBIOLOGICOS Y BIOTECNOLOGIA AGUAMARIN S.A.
    Inventors: Pamela Chavez Crooker, Johanna Obreque Contreras, Sergio Herrera Astudillo, Andrea Eusebia del Milagro Contreras Vera, Luis Carrera del Canto
  • PROCEDURE TO USE THE TAILINGS AS CONSTRUCTION MATERIAL GIVING IT WATERPROOFING CHARACTERISTICS AND REDUCE ITS CRACKING
    Publication number: 20190301124
    Abstract: A process to use the tailings as construction material giving it waterproofing characteristics and reduce its cracking is presented. For example, to use the mining tailing as a construction material conceding to it impermeabilizing features, reducing its cracking and increasing its resistance. The main stages of said process are to apply a calcium-containing solution to the soil to be treated; apply a solution that that contains calcite-producing bacteria, to the soil to be treated; optionally, add maltodextrin; and stabilize, compact and dry off the mix.
    Type: Application
    Filed: March 27, 2019
    Publication date: October 3, 2019
    Inventors: Pamela Chavez Crooker, Johanna Obreque Contreras, Sergio Herrera Astudillo, Andrea Eusebia del Milagro Contreras Vera, Luis Carrera del Canto