Patents by Inventor Bernadette A. Hernandez-Sanchez

Bernadette A. Hernandez-Sanchez 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).

  • Proppant compositions and methods of use
    Patent number: 11028318
    Abstract: Proppant compositions for use in hydraulic fracturing and methods of using same are disclosed herein. The proppant compositions include a plurality of proppant particulates and at least one particulate of the plurality of proppant particulates containing at least one tracer, wherein the at least one tracer separates from the at least one particulate located inside a fracture of a subterranean formation after a period of time.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: June 8, 2021
    Assignees: National Technology & Engineering Solutions of Sandia, LLC, CARBO Ceramics Inc., UNM Rainforest Innovations
    Inventors: Chad Cannan, Terrence Palisch, Richard A. Kemp, Timothy J. Boyle, Bernadette A. Hernandez-Sanchez, James E. Miller
  • Metal phosphide nanomaterials prepared from single source metal amides
    Patent number: 10836638
    Abstract: The present invention provides a novel solution or route for metal phosphide (MPx) nanomaterials from the thermal decomposition of metal bis[bis(diisopropylphosphino)amide], M[N(PPri2)2]2, and/or single-source precursors. Synthetic routes to MPx nanomaterials may be used in energy applications including batteries, semiconductors, magnets, catalyst, lasers, inks, electrocatalysts and photodiodes.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: November 17, 2020
    Assignee: UNM Rainforest Innovations
    Inventors: Richard Alan Kemp, Diane Dickie, Bernadette A. Hernandez-Sanchez, Timothy N. Lambert
  • Single-source synthesis of ceramic oxide nanoparticles
    Patent number: 10407347
    Abstract: The tris(trimethylsilyl)silanol (H-SST) ligand can be reacted with a Group 4 or 5 metal alkoxides in a solvent to form an SST-modified metal alkoxide precursor. Exemplary Group 4 precursors include [Ti(SST)2(OR)2] (OR=OPri, OBut, ONep); [Ti(SST)3(OBun)]; [Zr(SST)2(OBut)2(py)]; [Zr(SST)3(OR)] (OR=OBut, ONep); [Hf(SST)2(OBut)2]; and [Hf(SST)2(ONep)2(py)n] (n=1, 2), where OPri=OCH(CH3)2, OBut=OC(CH3)3, OBun=O(CH2)3CH3, ONep=OCH2C(CH3)3, and py=pyridine. Exemplary Group 5 precursors include [V(SST)3(py)2]; [Nb(SST)3(OEt)2]; [Nb(O)(SST)3(py)]; 2[H][(Nb(?-O)2(SST))6(?6-O)]; [Nb8O10(OEt)18(SST)2.?Na2O]; [Ta(SST)(?-OEt)(OEt)3]2; and [Ta(SST)3(OEt)2]; where OEt=OCH2CH3. When thermally processed, the precursors can form unusual core-shell nanoparticles. For example, HfO2/SiO2 core/shell nanoparticles have demonstrated resistance to damage in extreme irradiation and thermal environments.
    Type: Grant
    Filed: February 21, 2018
    Date of Patent: September 10, 2019
    Assignee: National Technology & Engineering Solutions of Sandia, LLC
    Inventors: Timothy J. Boyle, Rana Chan, Jeremiah Matthew Sears, Bernadette A. Hernandez-Sanchez
  • PROPPANT COMPOSITIONS AND METHODS OF USE
    Publication number: 20190016950
    Abstract: Proppant compositions for use in hydraulic fracturing and methods of using same are disclosed herein. The proppant compositions include a plurality of proppant particulates and at least one particulate of the plurality of proppant particulates containing at least one tracer, wherein the at least one tracer separates from the at least one particulate located inside a fracture of a subterranean formation after a period of time.
    Type: Application
    Filed: September 18, 2018
    Publication date: January 17, 2019
    Inventors: Chad Cannan, Terrence Palisch, Richard A. Kemp, Timothy J. Boyle, Bernadette A. Hernandez-Sanchez, James E. Miller
  • Proppant compositions and methods of use
    Patent number: 10106727
    Abstract: Proppant compositions for use in hydraulic fracturing and methods of using same are disclosed herein. The proppant compositions include a plurality of proppant particulates and at least one particulate of the plurality of proppant particulates containing at least one tracer, wherein the at least one tracer separates from the at least one particulate located inside a fracture of a subterranean formation after a period of time.
    Type: Grant
    Filed: September 17, 2014
    Date of Patent: October 23, 2018
    Assignees: National Technology & Engineering Solutions of Sandia, LLC, CARBO Ceramics Inc., STC.UNM
    Inventors: Chad Cannan, Terrence Palisch, Richard A. Kemp, Timothy J. Boyle, Bernadette A. Hernandez-Sanchez, James E. Miller
  • Single-source synthesis of ceramic oxide nanoparticles
    Publication number: 20180179112
    Abstract: The tris(trimethylsilyl)silanol (H-SST) ligand can be reacted with a Group 4 or 5 metal alkoxides in a solvent to form an SST-modified metal alkoxide precursor. Exemplary Group 4 precursors include [Ti(SST)2(OR)2] (OR=OPri, OBut, ONep); [Ti(SST)3(OBun)]; [Zr(SST)2(OBut)2(py)]; [Zr(SST)3(OR)] (OR=OBut, ONep); [Hf(SST)2(OBut)2]; and [Hf(SST)2(ONep)2(py)n] (n=1, 2), where OPri=OCH(CH3)2, OBut=OC(CH3)3, OBun=O(CH2)3CH3, ONep=OCH2C(CH3)3, and py=pyridine. Exemplary Group 5 precursors include [V(SST)3(py)2]; [Nb(SST)3(OEt)2]; [Nb(O)(SST)3(py)]; 2[H][(Nb(?-O)2(SST))6(?6-O)]; [Nb8O10(OEt)18(SST)2.?Na2O]; [Ta(SST)(?-OEt)(OEt)3]2; and [Ta(SST)3(OEt)2]; where OEt=OCH2CH3. When thermally processed, the precursors can form unusual core-shell nanoparticles. For example, HfO2/SiO2 core/shell nanoparticles have demonstrated resistance to damage in extreme irradiation and thermal environments.
    Type: Application
    Filed: February 21, 2018
    Publication date: June 28, 2018
    Inventors: Timothy J. Boyle, Rana Chan, Jeremiah Matthew Sears, Bernadette A. Hernandez-Sanchez
  • METAL PHOSPHIDE NANOMATERIALS PREPARED FROM SINGLE SOURCE METAL AMIDES
    Publication number: 20180072572
    Abstract: The present invention provides a novel solution or route for metal phosphide (MPx) nanomaterials from the thermal decomposition of metal bis[bis(diisopropylphosphino)amide], M[N(PPri2)2]2, and/or single-source precursors. Synthetic routes to MPx nanomaterials may be used in energy applications including batteries, semiconductors, magnets, catalyst, lasers, inks, electrocatalysts and photodiodes.
    Type: Application
    Filed: April 8, 2016
    Publication date: March 15, 2018
    Applicants: STC.UNM, Sandia Corporation
    Inventors: Richard Alan Kemp, Diane Dickie, Bernadette A. Hernandez-Sanchez, Timothy N. Labert
  • Method to synthesize metal chalcogenide monolayer nanomaterials
    Patent number: 9517937
    Abstract: Metal chalcogenide monolayer nanomaterials can be synthesized from metal alkoxide precursors by solution precipitation or solvothermal processing. The synthesis routes are more scalable, less complex and easier to implement than other synthesis routes.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: December 13, 2016
    Assignee: Sandia Corporation
    Inventors: Bernadette A. Hernandez-Sanchez, Timothy J. Boyle
  • PROPPANT COMPOSITIONS AND METHODS OF USE
    Publication number: 20160075937
    Abstract: Proppant compositions for use in hydraulic fracturing and methods of using same are disclosed herein. The proppant compositions include a plurality of proppant particulates and at least one particulate of the plurality of proppant particulates containing at least one tracer, wherein the at least one tracer separates from the at least one particulate located inside a fracture of a subterranean formation after a period of time.
    Type: Application
    Filed: September 17, 2014
    Publication date: March 17, 2016
    Inventors: Chad Cannan, Terrence Palisch, Richard A. Kemp, Timothy J. Boyle, Bernadette A. Hernandez-Sanchez, James E. Miller
  • Method to Synthesize Metal Chalcogenide Monolayer Nanomaterials
    Publication number: 20150266735
    Abstract: Metal chalcogenide monolayer nanomaterials can be synthesized from metal alkoxide precursors by solution precipitation or solvothermal processing. The synthesis routes are more scalable, less complex and easier to implement than other synthesis routes.
    Type: Application
    Filed: March 17, 2015
    Publication date: September 24, 2015
    Inventors: Bernadette A. Hernandez-Sanchez, Timothy J. Boyle