Patents by Inventor Steven M. George

Steven M. George 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).

  • Publication number: 20150171433
    Abstract: A coated substrate for forming fuel cell catalyst layers includes a plurality of substrate particles, an adhesion layer disposed over the substrate particles, and a precious metal layer disposed over the adhesion layer. The adhesion layer includes a tungsten metal layer. Characteristically, the coated substrate is used in fuel cell applications such as providing the catalyst particles used in the cathode and/or anode catalyst layers.
    Type: Application
    Filed: October 29, 2014
    Publication date: June 18, 2015
    Inventors: ANUSORN KONGKANAND, RATANDEEP S. KUKREJA, JOEL W. CLANCEY, ANDREW CAVANAUGH, STEVEN M. GEORGE
  • Patent number: 8647723
    Abstract: A method to achieve a conformal ultrathin film of platinum or one of its alloys on a substrate that can be economically used as a heterogeneous catalyst, such as automotive polymer electrolyte membrane (PEM) fuel cell catalyst. The method includes using a hydrogen plasma in platinum atomic layer deposition along with tungsten as a substrate or anchoring adhesive layer to assist platinum nucleation and deposition.
    Type: Grant
    Filed: September 28, 2011
    Date of Patent: February 11, 2014
    Assignee: GM Global Technology Operations LLC
    Inventors: Anusorn Kongkanand, Frederick T. Wagner, Steven M. George, Layton Baker
  • Patent number: 8637156
    Abstract: Layers of a passivating material and/or containing luminescent centers are deposited on phosphor particles or particles that contain a host material that is capable of capturing an excitation energy and transferring it to a luminescent center or layer. The layers are formed in an ALD process. The ALD process permits the formation of very thin layers. Coated phosphors have good resistance to ambient moisture and oxygen, and/or can be designed to emit a distribution of desired light wavelengths.
    Type: Grant
    Filed: April 23, 2012
    Date of Patent: January 28, 2014
    Inventors: Alan W. Weimer, Steven M. George, Karen J. Buochler, Joseph A. Spencer, II, Jarod McCormick
  • Patent number: 8397508
    Abstract: 1-100 nm metal ferrite spinel coatings are provided on substrates, preferably by using an atomic layer deposition process. The coatings are able to store energy such as solar energy, and to release that stored energy, via a redox reaction. The coating is first thermally or chemically reduced. The reduced coating is then oxidized in a second step to release energy and/or hydrogen, carbon monoxide or other reduced species.
    Type: Grant
    Filed: November 5, 2008
    Date of Patent: March 19, 2013
    Assignee: The Regents of the University of Colorado
    Inventors: Alan W. Weimer, Christopher Perkins, Jonathan Scheffe, Steven M. George, Paul Lichty
  • Publication number: 20120199793
    Abstract: Layers of a passivating material and/or containing luminescent centers are deposited on phosphor particles or particles that contain a host material that is capable of capturing an excitation energy and transferring it to a luminescent center or layer. The layers are formed in an ALD process. The ALD process permits the formation of very thin layers. Coated phosphors have good resistance to ambient moisture and oxygen, and/or can be designed to emit a distribution of desired light wavelengths.
    Type: Application
    Filed: April 23, 2012
    Publication date: August 9, 2012
    Inventors: Alan W. Weimer, Steven M. George, Koron J. Buochler, Joseph A. Spencer, II, Jarod McCormick
  • Patent number: 8187731
    Abstract: 1-100 nm metal ferrite spinel coatings are provided on substrates, preferably by using an atomic layer deposition process. The coatings are able to store energy such as solar energy, and to release that stored energy, via a redox reaction. The coating is first thermally or chemically reduced. The reduced coating is then oxidized in a second step to release energy and/or hydrogen, carbon monoxide or other reduced species.
    Type: Grant
    Filed: May 5, 2010
    Date of Patent: May 29, 2012
    Assignee: The Regents of the University of Colorado
    Inventors: Alan W. Weimer, Christopher Perkins, Jonathan Scheffe, Steven M. George, Paul Lichty
  • Publication number: 20120121932
    Abstract: Ultrathin layers of organic polymers or organic-inorganic hybrid polymers are deposited onto a substrate using molecular layer deposition methods. The process uses vapor phase materials which contain a first functional group and react only monofunctionally at the surface to add a unit to the polymer chain. The vapor phase reactant in addition has a second functional group, which is different from the first functional group, or a blocked, masked or protected functional group, or else has a precursor to such a functional group.
    Type: Application
    Filed: November 13, 2007
    Publication date: May 17, 2012
    Inventors: Steven M. George, Arrelaine Allen Dameron, Nicole Marie Adamcyzk Keaner, Byunghoon Yoon
  • Publication number: 20120100301
    Abstract: A method to achieve a conformal ultrathin film of platinum or one of its alloys on a substrate that can be economically used as a heterogeneous catalyst, such as automotive polymer electrolyte membrane (PEM) fuel cell catalyst. The method includes using a hydrogen plasma in platinum atomic layer deposition along with tungsten as a substrate or anchoring adhesive layer to assist platinum nucleation and deposition.
    Type: Application
    Filed: September 28, 2011
    Publication date: April 26, 2012
    Applicants: THE REGENTS OF THE UNIVERSITY OF COLORADO, GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Anusorn Kongkanand, Frederick T. Wagner, Steven M. George, Layton Baker
  • Patent number: 8163336
    Abstract: Layers of a passivating material and/or containing luminescent centers are deposited on phosphor particles or particles that contain a host material that is capable of capturing an excitation energy and transferring it to a luminescent center or layer. The layers are formed in an ALD process. The ALD process permits the formation of very thin layers. Coated phosphors have good resistance to ambient moisture and oxygen, and/or can be designed to emit a distribution of desired light wavelengths.
    Type: Grant
    Filed: February 19, 2010
    Date of Patent: April 24, 2012
    Inventors: Alan W. Weimer, Steven M. George, Karen J. Buechler, Joseph A. Spencer, II, Jarod McCormick
  • Publication number: 20120077082
    Abstract: Electrodes for lithium batteries are coated via an atomic layer deposition process. The coatings can be applied to the assembled electrodes, or in some cases to particles of electrode material prior to assembling the particles into an electrode. The coatings can be as thin as 2 ?ngstroms thick. The coating provides for a stable electrode. Batteries containing the electrodes tend to exhibit high cycling capacities.
    Type: Application
    Filed: June 13, 2011
    Publication date: March 29, 2012
    Inventors: Lee Se-Hee, Steven M. George, Andrew S. Cavanagh, Jung Yoon Seok, Anne C. Dillon
  • Publication number: 20100218491
    Abstract: 1-100 nm metal ferrite spinel coatings are provided on substrates, preferably by using an atomic layer deposition process. The coatings are able to store energy such as solar energy, and to release that stored energy, via a redox reaction. The coating is first thermally or chemically reduced. The reduced coating is then oxidized in a second step to release energy and/or hydrogen, carbon monoxide or other reduced species.
    Type: Application
    Filed: November 5, 2008
    Publication date: September 2, 2010
    Inventors: Alan W. Weimer, Christopher Perkins, Jonathan Scheffe, Steven M. George, Paul Lichty
  • Publication number: 20100215897
    Abstract: 1-100 nm metal ferrite spinel coatings are provided on substrates, preferably by using an atomic layer deposition process. The coatings are able to store energy such as solar energy, and to release that stored energy, via a redox reaction. The coating is first thermally or chemically reduced. The reduced coating is then oxidized in a second step to release energy and/or hydrogen, carbon monoxide or other reduced species.
    Type: Application
    Filed: May 5, 2010
    Publication date: August 26, 2010
    Inventors: Alan W. Weimer, Christopher Perkins, Jonathan Scheffe, Steven M. George, Paul Lichty
  • Publication number: 20100178481
    Abstract: Coatings are applied on a flexible substrate using atomic layer deposition and molecular layer deposition methods. The coatings have thickness of up to 100 nanometers. The coatings include layers of an inorganic material such as alumina, which are separated by flexibilizing layers that are deposited with covalent chemical linkage to the inorganic material and which are one or more of silica deposited by an atomic layer deposition process; an organic polymer that is deposited by a molecular layer deposition process, or a hybrid organic-inorganic polymer that is deposited by an molecular layer deposition process.
    Type: Application
    Filed: June 22, 2008
    Publication date: July 15, 2010
    Inventors: Steven M. George, Arrelaine Allen Dameron, Beau B. Burton, Markus D. Groner
  • Publication number: 20100151249
    Abstract: Layers of a passivating material and/or containing luminescent centers are deposited on phosphor particles or particles that contain a host material that is capable of capturing an excitation energy and transferring it to a luminescent center or layer. The layers are formed in an ALD process. The ALD process permits the formation of very thin layers. Coated phosphors have good resistance to ambient moisture and oxygen, and/or can be designed to emit a distribution of desired light wavelengths.
    Type: Application
    Filed: February 19, 2010
    Publication date: June 17, 2010
    Inventors: Alan W. Weimer, Steven M. George, Karen J. Buechler, Joseph A. Spencer, II, Jarod McCormick
  • Patent number: 7553686
    Abstract: Micro-mechanical devices, such as MEMS, having layers thereon, and methods of forming the layers, are disclosed. In one aspect, a method may include forming a layer including an oxide of aluminum over at least a portion of a micro-mechanical device, and coating the layer by bonding material to surface hydroxyl groups of the layer. In another aspect, a method may include introducing a micro-mechanical device into an atomic layer deposition chamber, and substantially filling nanometer sized voids of the micro-mechanical device by using atomic layer deposition to introduce material into the voids. In a still further aspect, a method may include introducing an alkylaminosilane to a micro-mechanical device having a surface hydroxyl group, and bonding a silane to the micro-mechanical device by reacting the alkylaminosilane with the surface hydroxyl group.
    Type: Grant
    Filed: August 2, 2004
    Date of Patent: June 30, 2009
    Assignee: The Regents of the University of Colorado, a Body Corporate
    Inventors: Steven M. George, Cari F. Herrmann
  • Patent number: 7547952
    Abstract: The present invention generally is a method for forming a high-k dielectric layer, comprising depositing a hafnium compound by atomic layer deposition to a substrate, comprising, delivering a hafnium precursor to a surface of the substrate, reacting the hafnium precursor and forming a hafnium containing layer to the surface, delivering a nitrogen precursor to the hafnium containing layer, forming at least one hafnium nitrogen bond and depositing the hafnium compound to the surface.
    Type: Grant
    Filed: May 30, 2006
    Date of Patent: June 16, 2009
    Assignee: Applied Materials, Inc.
    Inventors: Craig Metzner, Shreyas Kher, Yeong Kwan Kim, M. Noel Rocklein, Steven M. George
  • Patent number: 7426067
    Abstract: A micro-electromechanical device or MEMS having a conformal layer of material deposited by atomic layer deposition is discussed. The layer may provide physical protection to moving components of the device, may insulate electrical components of the device, may present a biocompatible surface interface to a biological system, and may otherwise improve such devices. The layer may also comprise a combination of multiple materials each deposited with great control to allow creating layers of customizable properties and to allow creating layers having multiple independent functions, such as providing physical protection from wear and providing electrical insulation.
    Type: Grant
    Filed: December 17, 2002
    Date of Patent: September 16, 2008
    Assignee: Regents of the University of Colorado
    Inventors: Victor M. Bright, Jeffrey Elam, Francois Fabreguette, Steven M. George, Nils Hoivik, Yung-Cheng Lee, Ryan Linderman, Marie Tripp
  • Patent number: 7396862
    Abstract: Dental composite filler materials comprise particles coated via an atomic layer deposition (ALD) process. The coating material has a different composition than the core particle. The difference in composition permits fine control over the refractive index of the coated particles, allowing good matching tooth enamel and to the binder materials used in the composite.
    Type: Grant
    Filed: February 6, 2004
    Date of Patent: July 8, 2008
    Inventors: Alan W. Weimer, Sotiris E. Pratsinis, Christos Angeletakis, Steven M. George
  • Publication number: 20070298250
    Abstract: Layers of a passivating material and/or containing luminescent centers are deposited on phosphor particles or particles that contain a host material that is capable of capturing an excitation energy and transferring it to a luminescent center or layer. The layers are formed in an ALD process. The ALD process permits the formation of very thin layers. Coated phosphors have good resistance to ambient moisture and oxygen, and/or can be designed to emit a distribution of desired light wavelengths.
    Type: Application
    Filed: June 22, 2006
    Publication date: December 27, 2007
    Inventors: Alan W. Weimer, Steven M. George, Karen J. Buechler, Joseph A. Spencer, Jarod McCormick
  • Patent number: 7132697
    Abstract: So-called quantum tunneling varistors are made with a matrix of particles having a nonconductive coating that is deposited on core conductive particles using atomic layer deposition methods. The resulting coated particles have highly uniform, adherent coatings that allow easier production of good quality quantum tunneling varistor devices.
    Type: Grant
    Filed: February 6, 2004
    Date of Patent: November 7, 2006
    Inventors: Alan W. Weimer, Steven M. George, Clinton Dutcher