Patents by Inventor Sebastião Curimbaba

Sebastião Curimbaba 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).

  • USE OF A THERMOPHOSPHATE FERTILIZER THAT HAS LOW SOLUBILITY IN WATER AND METHOD FOR REDUCING EUTROPHICATION OF WATER BODIES DUE TO FERTILIZERS
    Publication number: 20190367424
    Abstract: The present invention relates to the use of a poorly water-soluble thermophosphate fertilizer to reduce water eutrophication caused by fertilizers, particularly due to fertilizer production or soil fertilization. The invention further relates to a method of reducing water eutrophication caused by fertilizers.
    Type: Application
    Filed: February 17, 2017
    Publication date: December 5, 2019
    Inventors: Sebastiao CURIMBABA, Ramiro CHAVASCO FERREIRA, Rafael José HORNE CURIMBABA FERREIRA, Gabriel WARWICK KERR DE PAIVA CÔRTES, Guilherme DE PAIVA CÔRTES
  • Proppant for hydraulic fracturing of oil and gas wells
    Patent number: 7954548
    Abstract: The present invention relates to a proppant for the hydraulic fracturing of oil or gas wells, which consists of a mixture of from 10 to 95% by weight of a spherical proppant and from 5 to 90% by weight of an angular material, the percentages being based on the total weight of the mixture. The proppant obtained according to the present invention is useful for eliminating or decreasing the “flow-back” phenomenon in operations in oil or gas wells.
    Type: Grant
    Filed: June 9, 2003
    Date of Patent: June 7, 2011
    Assignee: Mineracao Curimbaba Ltda.
    Inventors: Sebastião Curimbaba, Gabriel Warwick Kerr De Paiva Cortes, Guilherme De Paiva Cortes
  • Proppant for hydraulic fracturing of oil and gas wells and process for decreasing or eliminating "flow-back" effect in oil and gas wells
    Publication number: 20070084602
    Abstract: The present invention relates to a proppant for the hydraulic fracturing of oil or gas wells, which consists of a mixture of from 10 to 95% by weight of a spherical proppant and from 5 to 90% by weight of an angular material, the percentages being based on the total weight of the mixture. The proppant obtained according to the present invention is useful for eliminating or decreasing the “flow-back” phenomenon in operations in oil or gas wells.
    Type: Application
    Filed: June 9, 2003
    Publication date: April 19, 2007
    Inventors: Sebastiao Curimbaba, Gabriel Warwick De Paiva Cortes, Guilherme De Paiva Cortes