Patents by Inventor Christopher J. Summers
Christopher J. Summers 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).
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Patent number: 11959068Abstract: Compositions and methods are provided for use in controlling souring and corrosion causing prokaryotes, such as SRP, by treating oil and gas field environments or treatment fluids with a newly identified bacterial strain ATCC Accession No. PTA-124262 as a self-propagating whole cell that produces an anti-SRP bacteriocin in situ. In another aspect, the methods use one or more toxic peptides or proteins isolated therefrom in methods to control unwanted prokaryotic growth in these environments.Type: GrantFiled: January 27, 2023Date of Patent: April 16, 2024Assignee: Lanxess CorporationInventors: Kathleen Manna, Ian A. Tomlinson, Abhiram Thatipelli, Christopher Janes, Elizabeth J. Summer
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Publication number: 20170226271Abstract: The polymer compositions described herein include the reaction product obtained from a mixture that includes: (i) a hydroxyl terminated intermediate containing at least one furan functional group; and (ii) a polyisocyanate component. The polymer compositions may further include a polymaleimide compound which may be (a) added as a component of the polymer composition, (b) incorporated into the structure of the hydroxyl terminated intermediate containing at least one furan functional group, or (c) both. The resulting polymer composition is capable of thermally reversible crosslinking.Type: ApplicationFiled: July 29, 2015Publication date: August 10, 2017Inventors: Umit G. Makal, Roger W. Day, David M. Haddleton, Christopher J. Summers
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Patent number: 8652874Abstract: A method of making nanostructures using a self-assembled monolayer of organic spheres is disclosed. The nanostructures include bowl-shaped structures and patterned elongated nanostructures. A bowl-shaped nanostructure with a nanorod grown from a conductive substrate through the bowl-shaped nanostructure may be configured as a field emitter or a vertical field effect transistor. A method of separating nanoparticles of a desired size employs an array of bowl-shaped structures.Type: GrantFiled: November 18, 2011Date of Patent: February 18, 2014Assignee: Georgia Tech Research CorporationInventors: Zhong L. Wang, Christopher J. Summers, Xudong Wang, Elton D Graugnard, Jeffrey King
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Publication number: 20120061348Abstract: A method of making nanostructures using a self-assembled monolayer of organic spheres is disclosed. The nanostructures include bowl-shaped structures and patterned elongated nanostructures. A bowl-shaped nanostructure with a nanorod grown from a conductive substrate through the bowl-shaped nanostructure may be configured as a field emitter or a vertical field effect transistor. A method of separating nanoparticles of a desired size employs an array of bowl-shaped structures.Type: ApplicationFiled: November 18, 2011Publication date: March 15, 2012Applicant: GEORGIA TECH RESEARCH CORPORATIONInventors: Zhong L. Wang, Christopher J. Summers, Xudong Wang, Elton D. Graugnard, Jeffrey King
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Patent number: 8076701Abstract: A method of making nanostructures using a self-assembled monolayer of organic spheres is disclosed. The nanostructures include bowl-shaped structures and patterned elongated nanostructures. A bowl-shaped nanostructure with a nanorod grown from a conductive substrate through the bowl-shaped nanostructure may be configured as a field emitter or a vertical field effect transistor. A method of separating nanoparticles of a desired size employs an array of bowl-shaped structures.Type: GrantFiled: February 8, 2008Date of Patent: December 13, 2011Assignee: Georgia Tech Research CorporationInventors: Zhong L. Wang, Christopher J. Summers, Xudong Wang, Elton D Graugnard, Jeffrey King
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Publication number: 20110168969Abstract: A method of making nanostructures using a self-assembled monolayer of organic spheres is disclosed. The nanostructures include bowl-shaped structures and patterned elongated nanostructures. A bowl-shaped nanostructure with a nanorod grown from a conductive substrate through the bowl-shaped nanostructure may be configured as a field emitter or a vertical field effect transistor. A method of separating nanoparticles of a desired size employs an array of bowl-shaped structures.Type: ApplicationFiled: February 8, 2008Publication date: July 14, 2011Applicant: GEORGIA TECH RESEARCH CORPORATIONInventors: Zhong L. Wang, Christopher J. Summers, Xudong Wang, Elton D. Graugnard, Jeffrey King
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Patent number: 7351607Abstract: A method of making nanostructures using a self-assembled monolayer of organic spheres is disclosed. The nanostructures include bowl-shaped structures and patterned elongated nanostructures. A bowl-shaped nanostructure with a nanorod grown from a conductive substrate through the bowl-shaped nanostructure may be configured as a field emitter or a vertical field effect transistor. A method of separating nanoparticles of a desired size employs an array of bowl-shaped structures.Type: GrantFiled: December 10, 2004Date of Patent: April 1, 2008Assignee: Georgia Tech Research CorporationInventors: Zhong L. Wang, Christopher J. Summers, Xudong Wang, Elton D. Graugnard, Jeffrey King
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Publication number: 20080074046Abstract: The present invention provides apparatus, methods and systems for an electroluminescent (EL) display. An exemplary embodiment of an EL apparatus of the invention is in the form of an EL strip. The EL strip may comprise a Supportive Electrode Strip (SES) adapted to receive an EL stack, and an EL stack deposited thereon. The SES comprises a conductive substrate. The EL stack deposited on the SES to form an EL strip may include several layers. The EL strips may be grouped together to form an EL strip panel. The EL strips may also be electrically connected to form an EL panel and EL panels can be electrically connected to form an EL display. Methods for making and testing such systems and components are also disclosed.Type: ApplicationFiled: September 26, 2006Publication date: March 27, 2008Applicant: NANOLUMENS ACQUISITION, INC.Inventors: Adrian H. Kitai, Christopher J. Summers, Brent K. Wagner, Richard C. Cope
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Patent number: 7341779Abstract: The present invention provides surface coated phosphors useful in field emission displays and vacuum fluorescent displays. The surface coated phosphor comprises a thin coating of rare earth oxide, e.g., yttrium oxide, disposed on an uncoated phosphor such as a sulfide phosphor. The present invention further provides a process for preparing a surface coated phosphor comprising contacting the uncoated phosphor with a rare earth hydroxide gel solution to obtain a rare earth hydroxide gel coated phosphor, drying the gel coated phosphor to remove solvent residues, and heat treating the dried rare earth hydroxide gel coated phosphor. The surface coated phosphors of the present invention have improved cathodoluminescence efficiency, coulombic aging resistance, chemical, and/or oxidative stability.Type: GrantFiled: February 20, 2004Date of Patent: March 11, 2008Assignees: Georgia Tech Research Corporation, Samsung Display Devices Co., Ltd.Inventors: Wounjhang Park, Kazuhito Yasuda, Brent K. Wagner, Christopher J. Summers, Youngrag Do, Hong Guen Yang
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Patent number: 6999669Abstract: A photonic crystal includes a phosphor matrix and a plurality of defect regions. The phosphor matrix defines a plurality of substantially spherical voids arranged in a triangular lattice arrangement. The phosphor matrix has a first index of refraction. The plurality of defect regions is distributed in a subset of the spherical voids. Each defect region has a second index of refraction that is different from the first index of refraction.Type: GrantFiled: August 19, 2003Date of Patent: February 14, 2006Assignee: Georgia Tech Research CorporationInventors: Christopher J. Summers, Wounjhang Park
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Patent number: 6924233Abstract: Methods of coating a semiconductor device with phosphor particles are disclosed. In the methods, a bath is provided which contains suspended particles of a first phosphor material and suspended particles of a second phosphor material. The particles of the first phosphor material have a mean particle size in the range from about 1 micron to about 6 microns, and the particles of the second phosphor material have a mean particle size in the range from about 12 microns to about 25 microns, wherein the particle size distribution of the phosphor material in the bath is bimodal. The semiconductor device is disposed in the bath containing the suspended particles, and a first biasing voltage is applied between an anode in electrical contact with the bath and the p side to hold the anode at a positive voltage with respect to the p side. A second biasing voltage is applied between the p side and the n side.Type: GrantFiled: March 19, 2004Date of Patent: August 2, 2005Assignee: Agilent Technologies, Inc.Inventors: Janet Bee Yin Chua, Azlida Ahmad, Christopher J. Summers, Hisham Menkara
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Patent number: 6864110Abstract: The present invention provides a process and apparatus for selectively depositing materials on a semiconductor device, such as depositing phosphors or other optical materials on a light emitting diode (LED), using an electrophoretic deposition process. The semiconductor device comprises a p-side and an n-side. A first biasing voltage is applied between an anode and the p-side of the semiconductor device. A second biasing voltage is applied between the p-side and the n-side of the semiconductor device. The relative biasing of the p-side and the n-side determines where coating is deposited on the semiconductor device. An optional pre-coating process is used to deposit a high resistivity dielectric material, such as silica, on the semiconductor device. The pre-coating can even the electric field on the surface of the semiconductor device, where local features such as metal connections or passivation layers disturb the electric field during phosphor deposition without pre-coating.Type: GrantFiled: October 22, 2002Date of Patent: March 8, 2005Assignee: Agilent Technologies, Inc.Inventors: Christopher J. Summers, Hisham Menkara, Bee Yin Janet Chua
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Publication number: 20040170352Abstract: A photonic crystal includes a phosphor matrix and a plurality of defect regions. The phosphor matrix defines a plurality of substantially spherical voids arranged in a triangular lattice arrangement. The phosphor matrix has a first index of refraction. The plurality of defect regions is distributed in a subset of the spherical voids. Each defect region has a second index of refraction that is different from the first index of refraction.Type: ApplicationFiled: August 19, 2003Publication date: September 2, 2004Inventors: Christopher J. Summers, Wounjhang Park
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Publication number: 20040166318Abstract: The present invention provides surface coated phosphors useful in field emission displays and vacuum fluorescent displays. The surface coated phosphor comprises a thin coating of rare earth oxide, e.g., yttrium oxide, disposed on an uncoated phosphor such as a sulfide phosphor. The present invention further provides a process for preparing a surface coated phosphor comprising contacting the uncoated phosphor with a rare earth hydroxide gel solution to obtain a rare earth hydroxide gel coated phosphor, drying the gel coated phosphor to remove solvent residues, and heat treating the dried rare earth hydroxide gel coated phosphor. The surface coated phosphors of the present invention have improved cathodoluminescence efficiency, coulombic aging resistance, chemical, and/or oxidative stability.Type: ApplicationFiled: February 20, 2004Publication date: August 26, 2004Applicants: Georgia Tech Research Corporation, Samsung Display Devices Co., Ltd.Inventors: Wounjhang Park, Kazuhito Yasuda, Brent K. Wagner, Christopher J. Summers, Youngrag Do, Hong Guen Yang
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Publication number: 20040121502Abstract: The present invention provides a process and apparatus for selectively depositing materials on a semiconductor device, such as depositing phosphors or other optical materials on a light emitting diode (LED), using an electrophoretic deposition process. The semiconductor device comprises a p-side and an n-side. A first biasing voltage is applied between an anode and the p-side of the semiconductor device. A second biasing voltage is applied between the p-side and the n-side of the semiconductor device. The relative biasing of the p-side and the n-side determines where coating is deposited on the semiconductor device. An optional pre-coating process is used to deposit a high resistivity dielectric material, such as silica, on the semiconductor device. The pre-coating can even the electric field on the surface of the semiconductor device, where local features such as metal connections or passivation layers disturb the electric field during phosphor deposition without pre-coating.Type: ApplicationFiled: October 22, 2002Publication date: June 24, 2004Inventors: Christopher J. Summers, Hisham Menkara, Bee Yin Janet Chua
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Patent number: 6699523Abstract: The present invention provides surface coated phosphors useful in field emission displays and vacuum fluorescent displays. The surface coated phosphor comprises a thin coating of rare earth oxide, e.g., yttrium oxide, disposed on an uncoated phosphor such as a sulfide phosphor. The present invention further provides a process for preparing a surface coated phosphor comprising contacting the uncoated phosphor with a rare earth hydroxide gel solution to obtain a rare earth hydroxide gel coated phosphor, drying the gel coated phosphor to remove solvent residues, and heat treating the dried rare earth hydroxide gel coated phosphor. The surface coated phosphors of the present invention have improved cathodoluminescence efficiency, coulombic aging resistance, chemical, and/or oxidative stability.Type: GrantFiled: June 11, 2003Date of Patent: March 2, 2004Assignees: Georgia Tech Research Corp., Samsung Display Devices Co., Ltd.Inventors: Wounjhang Park, Kazuhito Yasuda, Brent K. Wagner, Christopher J. Summers, Youngrag Do, Hong Guen Yang
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Patent number: 6669867Abstract: A method of producing two visible light photons from an oxide-based phosphor doped with praseodymium (Pr) and including atoms of at least one activator in response to excitation with a single ultraviolet light photon. The method includes exciting the Pr of the oxide-based phosphor with a photon of ultraviolet light to excite an electron to an excited state, the excited electron falling to a lower energy state in a non-radiative transition and transferring energy to excite a first activator atom in the oxide-based phosphor, the first activator atom emitting a first photon of visible light, and the excited electron falling further to a lower energy state in a non-radiative transition, transferring energy to excite a second activator atom in the oxide-based phosphor, the second activator atom emitting a second photon of visible light.Type: GrantFiled: November 15, 2001Date of Patent: December 30, 2003Assignees: Georgia Tech Research Corporation, Samsung SDI Co., Ltd.Inventors: Woun-jhang Park, Christopher J. Summers, Young-rag Do, Do-hyung Park, Hong-geun Yang
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Publication number: 20030219599Abstract: The present invention provides surface coated phosphors useful in field emission displays and vacuum fluorescent displays. The surface coated phosphor comprises a thin coating of rare earth oxide, e.g., yttrium oxide, disposed on an uncoated phosphor such as a sulfide phosphor. The present invention further provides a process for preparing a surface coated phosphor comprising contacting the uncoated phosphor with a rare earth hydroxide gel solution to obtain a rare earth hydroxide gel coated phosphor, drying the gel coated phosphor to remove solvent residues, and heat treating the dried rare earth hydroxide gel coated phosphor. The surface coated phosphors of the present invention have improved cathodoluminescence efficiency, coulombic aging resistance, chemical, and/or oxidative stability.Type: ApplicationFiled: June 11, 2003Publication date: November 27, 2003Applicants: Georgia Tech Research Corporation, Samsung Display Devices Co., Ltd.Inventors: Wounjhang Park, Kazuhito Yasuda, Brent K. Wagner, Christopher J. Summers, Youngrag Do, Hong Guen Yang
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Publication number: 20030089889Abstract: A method of producing two visible light photons from an oxide-based phosphor doped with praseodymium (Pr) and including atoms of at least one activator in response to excitation with a single ultraviolet light photon. The method includes exciting the Pr of the oxide-based phosphor with a photon of ultraviolet light to excite an electron to an excited state, the excited electron falling to a lower energy state in a non-radiative transition and transferring energy to excite a first activator atom in the oxide-based phosphor, the first activator atom emitting a first photon of visible light, and the excited electron falling further to a lower energy state in a non-radiative transition, transferring energy to excite a second activator atom in the oxide-based phosphor, the second activator atom emitting a second photon of visible light.Type: ApplicationFiled: November 15, 2001Publication date: May 15, 2003Applicant: Georgia Tech Research CorporationInventors: Woun-jhang Park, Christopher J. Summers, Young-rag Do, Do-hyung Park, Hong-geun Yang
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Publication number: 20020119247Abstract: The present invention provides surface coated phosphors useful in field emission displays and vacuum fluorescent displays. The surface coated phosphor comprises a thin coating of rare earth oxide, e.g., yttrium oxide, disposed on an uncoated phosphor such as a sulfide phosphor. The present invention further provides a process for preparing a surface coated phosphor comprising contacting the uncoated phosphor with a rare earth hydroxide gel solution to obtain a rare earth hydroxide gel coated phosphor, drying the gel coated phosphor to remove solvent residues, and heat treating the dried rare earth hydroxide gel coated phosphor. The surface coated phosphors of the present invention have improved cathodoluminescence efficiency, coulombic aging resistance, chemical, and/or oxidative stability.Type: ApplicationFiled: April 30, 2002Publication date: August 29, 2002Applicant: Georgia Tech Research CorporationInventors: Wounjhang Park, Kazuhito Yasuda, Brent K. Wagner, Christopher J. Summers, Youngrag Do, Hong Guen Yang