Patents by Inventor Andres Miguel Quesada Perez

Andres Miguel Quesada Perez 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).

  • Method for preparing nanosized sulfide catalysts
    Patent number: 9993808
    Abstract: A method for preparing nanosized sulfide catalysts includes providing an aqueous solution having an organometallic complex, mixing the organometallic complex with a sulfiding agent, an emulsifier, and a hydrocarbon oil to prepare a water-in-oil nanoemulsion; subjecting the water-in-oil nanoemulsion to thermal decomposition and isolating a solid product from the liquid.
    Type: Grant
    Filed: April 10, 2017
    Date of Patent: June 12, 2018
    Assignee: KUWAIT INSTITUTE FOR SCIENTIFIC RESEARCH
    Inventor: Andres Miguel Quesada Perez
  • Aluminosilicate compositions, preparation and use
    Patent number: 7297319
    Abstract: A metalloaluminosilicate composition includes an aluminosilicate composition having an aluminosilicate framework and containing at least one metal, wherein a substantial portion of the metal is incorporated into the aluminosilicate framework. A higher concentration of the metal is incorporated into the framework of the catalyst than is present at the surface of the catalyst.
    Type: Grant
    Filed: August 26, 2005
    Date of Patent: November 20, 2007
    Assignee: Intevep, S.A.
    Inventors: Gerardo Vitale-Rojas, Andres Miguel Quesada-Perez
  • Aluminosilicate compositions, preparation and use
    Patent number: 7041274
    Abstract: A metalloaluminosilicate composition includes an aluminosilicate composition having an aluminosilicate framework and containing at least one metal, wherein a substantial portion of the metal is incorporated into the aluminosilicate framework. A higher concentration of the metal is incorporated into the framework of the catalyst than is present at the surface of the catalyst.
    Type: Grant
    Filed: August 4, 2003
    Date of Patent: May 9, 2006
    Assignee: Intevep, S.A.
    Inventors: Gerardo Vitale-Rojas, Andres Miguel Quesada-Perez
  • Aluminosilicate compositions, preparation and use
    Publication number: 20060002849
    Abstract: A metalloaluminosilicate composition includes an aluminosilicate composition having an aluminosilicate framework and containing at least one metal, wherein a substantial portion of the metal is incorporated into the aluminosilicate framework. A higher concentration of the metal is incorporated into the framework of the catalyst than is present at the surface of the catalyst.
    Type: Application
    Filed: August 26, 2005
    Publication date: January 5, 2006
    Inventors: Gerardo Vitale-Rojas, Andres Miguel Quesada-Perez
  • Metaloalluminosilicate composition, preparation and use
    Patent number: 6346224
    Abstract: A method for preparing a metalloaluminosilicate, includes the steps of: providing a solution containing a silica source; providing a solution containing an alumina source; providing an aqueous acid solution containing a metal other than silicon or aluminum; mixing the silica source solution with the aqueous acid solution so as to form a silica source-metal containing mixture; mixing the silica source-metal containing mixture with the alumina source solution so as to provide a gel mixture; and hydrothermally crystallizing the gel mixture so as to provide a metalloaluminosilicate material having an aluminosilicate framework and having the metal incorporated into the aluminosilicate framework. A method for preparing aluminosilicate, and specific compositions, are also provided.
    Type: Grant
    Filed: October 22, 1999
    Date of Patent: February 12, 2002
    Assignee: Intevep, S.A.
    Inventors: Gerardo Vitale-Rojas, Andres Miguel Quesada Perez
  • Aluminosilicate compositions, preparation and use
    Publication number: 20020001564
    Abstract: A method for preparing a metalloaluminosilicate, includes the steps of: providing a solution containing a silica source; providing a solution containing an alumina source; providing an aqueous acid solution containing a metal other than silicon or aluminum; mixing the silica source solution with the aqueous acid solution so as to form a silica source-metal containing mixture; mixing the silica source-metal containing mixture with the alumina source solution so as to provide a gel mixture; and hydrothermally crystallizing the gel mixture so as to provide a metalloaluminosilicate material having an aluminosilicate framework and having the metal incorporated into the aluminosilicate framework. A method for preparing aluminosilicate, and specific compositions, are also provided.
    Type: Application
    Filed: February 2, 2001
    Publication date: January 3, 2002
    Inventors: Gerardo Vitale-Rojas, Andres Miguel Quesada Perez