Patents by Inventor Anh Duong

Anh Duong 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).

  • Patent number: 11929205
    Abstract: The invention offers an ultracapacitor-based power system solution with four main functional blocks which are power conditioning block, monitoring block, charge-discharge block and protection block. The proposed system has the advantage of working well in the environment of vibration, high temperature, has a large capacity to provide a large amount and radiates less heat compared to systems using traditional batteries. In addition, the system has functions to protect and stabilize the output voltage, and the operating parameters of the system is monitored continuously.
    Type: Grant
    Filed: May 10, 2021
    Date of Patent: March 12, 2024
    Assignee: VIETTEL GROUP
    Inventors: Truong Giang Duong, Canh Duong Nguyen, Duc Anh Nguyen, Xuan Chien Vuong, Phuong Nam Tran
  • Patent number: 10594068
    Abstract: A wet connect apparatus operable in a down-hole environment includes an annular electrical contact, which includes a resilient outer member constructed of coiled spring having its ends fused together, and also includes an inner retention member constructed of a gift ring embedded or installed within the resilient outer member. The inner retention member provides a radial bias to retain the annular electrical contact within an electrically conductive groove during installation and assembly of the wet connect apparatus.
    Type: Grant
    Filed: February 12, 2015
    Date of Patent: March 17, 2020
    Assignee: PRIME DOWNHOLE MANUFACTURING LLC
    Inventor: Khanh Anh Duong
  • Publication number: 20180327661
    Abstract: The present invention provides quantum dot compositions and methods of producing quantum dot compositions. The quantum dot compositions comprise a population of quantum dots, a siloxane polymer, an emulsification additive, and an organic resin. The present invention also provides quantum dot films comprising a quantum dot layer and methods of making quantum dot films.
    Type: Application
    Filed: May 10, 2018
    Publication date: November 15, 2018
    Applicant: NANOSYS, INC.
    Inventors: David OLMEIJER, Anh DUONG, Austin SMITH, Kao SAECHAO
  • Patent number: 10113383
    Abstract: A wellhead assembly includes a wellhead housing with a bore and an annular lock groove on an inner diameter surface of the bore. A wellbore member is concentrically located within the bore of the wellhead housing, defining an annulus between the wellbore member and the wellhead housing. An annular lock ring is positioned in the annulus. The annular lock ring has an outer diameter profile for engaging the lock groove and is radially expandable from an unset position to a set position. An energizing ring is positioned in the annulus to push the lock ring outward to the set position as the energizing ring moves downward. A retainer selectively engages the energizing ring and limits axial upward movement of the energizing ring relative to the wellbore member, retains the annular lock in the set position, and prevents axial upward movement of the wellbore member relative to the wellhead housing.
    Type: Grant
    Filed: November 13, 2014
    Date of Patent: October 30, 2018
    Assignee: VETCO GRAY, LLC
    Inventors: Khanh Anh Duong, Rick C. Hunter
  • Publication number: 20160359252
    Abstract: A wet connect apparatus operable in a down-hole environment includes an annular electrical contact, which includes a resilient outer member constructed of coiled spring having its ends fused together, and also includes an inner retention member constructed of a gift ring embedded or installed within the resilient outer member. The inner retention member provides a radial bias to retain the annular electrical contact within an electrically conductive groove during installation and assembly of the wet connect apparatus.
    Type: Application
    Filed: February 12, 2015
    Publication date: December 8, 2016
    Inventor: Khanh Anh DUONG
  • Publication number: 20160326869
    Abstract: A measurement while drilling (MWD) tool includes a sensor, an encoder operably connected to the sensor and a pulser operably connected to the encoder. The pulser includes a linearly acting bidirectional piston that operates a poppet valve. The poppet valve is designed to completely or partially interrupt the flow of fluid through the MWD tool. The selective operation of the piston-driven poppet valve creates pressure signals that are carried through the fluid. The piston assembly that drives the poppet valves includes wear rings that improve the performance and durability of the piston.
    Type: Application
    Filed: May 6, 2016
    Publication date: November 10, 2016
    Applicant: GE Energy Oilfield Technology, Inc.
    Inventor: Khanh Anh Duong
  • Patent number: 9399753
    Abstract: A method for cleaning residues from a semiconductor substrate during a nickel platinum silicidation process is disclosed, including a multi-step residue cleaning, including exposing the substrate to an aqua regia solution, followed by an exposure to a solution having hydrochloric acid and hydrogen peroxide. The SC2 solution can further react with remaining platinum residues, rendering it more soluble in an aqueous solution and thereby dissolving it from the surface of the substrate.
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: July 26, 2016
    Assignees: Intermolecular, Inc., GLOBALFOUNDRIES, INC.
    Inventors: Anh Duong, Clemens Fitz, Olov Karlsson
  • Publication number: 20160163551
    Abstract: A method includes forming a refractory metal alloy layer above a silicon-containing material, performing a first heating process to form a metal silicide region in at least a portion of the silicon-containing material using the refractory metal alloy layer, and removing at least a first portion of an unreacted portion of the refractory metal alloy layer using a first solution comprising a solvent and an organic chelator.
    Type: Application
    Filed: December 4, 2014
    Publication date: June 9, 2016
    Inventors: Anh Duong, Tae-Hoon Kim, Kakoli Das
  • Patent number: 9343408
    Abstract: Copper can be etched with selectivity to Ta/TaN barrier liner and SiC hardmask layers, for example, to reduce the potential copper contamination. The copper film can be recessed more than the liner to further enhance the protection. Wet etch solutions including a mixture of HF and H2SO4 can be used for selective etching copper with respect to the liner material, for example, the copper film can be recessed between 2 and 3 nm, and the barrier liner film can be recessed between 1.5 and 2 nm.
    Type: Grant
    Filed: November 8, 2013
    Date of Patent: May 17, 2016
    Assignees: Intermolecular, Inc., GLOBALFOUNDRIES, Inc.
    Inventors: Anh Duong, Errol Todd Ryan
  • Patent number: 9337030
    Abstract: A co-sputter technique is used to deposit In—Ga—Zn—O films using PVD. The films are deposited in an atmosphere including both oxygen and argon. A heater setpoint of about 300 C results in a substrate temperature of about 165 C. One target includes an alloy of In, Ga, Zn, and O with an atomic ratio of In:Ga:Zn of about 1:1:1. The second target includes a compound of zinc oxide. The films exhibit the c-axis aligned crystalline (CAAC) phase in an as-deposited state, without the need of a subsequent anneal treatment.
    Type: Grant
    Filed: November 20, 2014
    Date of Patent: May 10, 2016
    Assignee: Intermolecular, Inc.
    Inventors: Seon-Mee Cho, Stuart Brinkley, Anh Duong, Majid Gharghi, Sang Lee, Minh Huu Le, Karl Littau, Jingang Su
  • Patent number: 9245848
    Abstract: Methods of modifying a patterned semiconductor substrate are presented including: providing a patterned semiconductor substrate surface including a dielectric region and a conductive region; and applying an amphiphilic surface modifier to the dielectric region to modify the dielectric region. In some embodiments, modifying the dielectric region includes modifying a wetting angle of the dielectric region. In some embodiments, modifying the wetting angle includes making a surface of the dielectric region hydrophilic. In some embodiments, methods further include applying an aqueous solution to the patterned semiconductor substrate surface. In some embodiments, the conductive region is selectively enhanced by the aqueous solution. In some embodiments, methods further include providing the dielectric region formed of a low-k dielectric material. In some embodiments, applying the amphiphilic surface modifier modifies an interaction of the low-k dielectric region with a subsequent process.
    Type: Grant
    Filed: September 17, 2014
    Date of Patent: January 26, 2016
    Assignee: Intermolecular, Inc.
    Inventors: Anh Duong, Tony Chiang, Zachary M. Fresco, Nitin Kumar, Chi-I Lang, Jinhong Tong, Anna Tsizelmon
  • Publication number: 20160019556
    Abstract: Methods and apparatus for determining aspects of locations based on interactions of users with the locations. In some implementations, an aspect of a location may be determined based on comparing a first interaction measure for the location to a second measure. The first interaction measure may be determined based on a first group of interactions that are associated with the location. In some implementations, the second measure may be determined based on a second group of interactions that include additional interactions that are in addition to the interactions of the first group.
    Type: Application
    Filed: October 1, 2014
    Publication date: January 21, 2016
    Inventors: Boris Mazniker, Finnegan Southey, Christopher James Schilling, Quang Anh Duong, Tamas Sarlos
  • Patent number: 9224639
    Abstract: Copper can be etched with selectivity to Ta/TaN barrier liner and SiC hardmask layers, for example, to reduce the potential copper contamination. The copper film can be recessed more than the liner to further enhance the protection. Wet etch solutions including a mixture of HF and HCl can be used for selective etching copper with respect to the liner material, for example, the copper film can be recessed between 2 and 3 nm, and the barrier liner film can be recessed between 1.5 and 2 nm.
    Type: Grant
    Filed: July 23, 2015
    Date of Patent: December 29, 2015
    Assignees: Intermolecular, Inc., GLOBALFOUNDRIES, INC.
    Inventors: Anh Duong, Errol Todd Ryan
  • Publication number: 20150348833
    Abstract: Copper can be etched with selectivity to Ta/TaN barrier liner and SiC hardmask layers, for example, to reduce the potential copper contamination. The copper film can be recessed more than the liner to further enhance the protection. Wet etch solutions including a mixture of HF and HCl can be used for selective etching copper with respect to the liner material, for example, the copper film can be recessed between 2 and 3 nm, and the barrier liner film can be recessed between 1.5 and 2 nm.
    Type: Application
    Filed: July 23, 2015
    Publication date: December 3, 2015
    Inventors: Anh Duong, Errol Todd Ryan
  • Patent number: 9172685
    Abstract: A system for integrating access to separate and physically partitioned networks from a single client device is described. The system is interposed between the client device and the networks to allow communication between the client device and the networks, such that data remains partitioned between networks. The system includes a scrambler configured to mix portions of data of variable bit lengths. Typically, the scrambler receives the portions of data from each of the plurality of networks, intermixes the portions of data from the networks, then selects different paths for transporting the intermixed portions of data to the client device. Each of the different paths for transporting the intermixed portions of data are physically and/or logically partitioned from each other. Only when the data arrives on the client device is it able to be reassembled, and then only in particular partitioned locations on the client device corresponding to the particular network from which the data originated.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: October 27, 2015
    Assignee: Unisys Corporation
    Inventors: Robert A. Johnson, Thomas Douris, Anh Duong
  • Patent number: 9163739
    Abstract: A coating for use in protecting surfaces susceptible to environmental degradation. The coating may be applied to metallic surfaces for providing a barrier against elements and/or ambient conditions that would otherwise degrade the surface material. The coating includes multiple layers, where a thermoplastic polymer is included, wholly or partly, within one or more of the layers. Example applications of the coating are for protecting valve seat seals and valve stem seals of a valve assembly used in conjunction with handling of fluids produced from a subterranean formation.
    Type: Grant
    Filed: July 22, 2011
    Date of Patent: October 20, 2015
    Assignee: Vetco Gray Inc.
    Inventors: Rick C. Hunter, Khanh Anh Duong
  • Patent number: 9159683
    Abstract: Methods for etching copper in the fabrication of integrated circuits are disclosed. In one exemplary embodiment, a method for fabricating an integrated circuit includes providing an integrated circuit structure including a copper bump structure and a copper seed layer underlying and adjacent to the copper bump structure and etching the seed layer selective to the copper bump structure using a wet etching chemistry consisting of H3PO4 in a volume percentage of about 0.07 to about 0.36, H2O2 in a volume percentage of about 0.1 to about 0.7, and a remainder of H2O, and optionally NH4OH.
    Type: Grant
    Filed: February 10, 2014
    Date of Patent: October 13, 2015
    Assignees: GLOBALFOUNDRIES, INC., INTERMOLECULAR, INC.
    Inventors: Reiner Willeke, Tanya Atanasova, Anh Duong, Greg Nowling
  • Publication number: 20150279670
    Abstract: A co-sputter technique is used to deposit In—Ga—Zn—O films using PVD. The films are deposited in an atmosphere including both oxygen and argon. A heater setpoint of about 300 C results in a substrate temperature of about 165 C. One target includes an alloy of In, Ga, Zn, and O with an atomic ratio of In:Ga:Zn of about 1:1:1. The second target includes a compound of zinc oxide. The films exhibit the c-axis aligned crystalline (CAAC) phase in an as-deposited state, without the need of a subsequent anneal treatment.
    Type: Application
    Filed: November 20, 2014
    Publication date: October 1, 2015
    Inventors: Seon-Mee Cho, Stuart Brinkley, Anh Duong, Majid Gharghi, Sang Lee, Minh Huu Le, Karl Littau, Jingang Su
  • Publication number: 20150267819
    Abstract: A gate valve for use in oil field applications having a seal assembly made up of an elastomeric case and a spring in the case having a V-shaped cross section. The spring has legs that depend from one another, and free ends of the legs that are contoured towards one another to define a rounded surface on outer surfaces of the legs. The rounded surface reduces stress contact between the spring and the case, thereby prolonging seal assembly life. The seal assembly can be placed between a stem in the valve and a gland packing. Other seal assembly locations include between a seat ring and counterbore in the valve body.
    Type: Application
    Filed: March 18, 2014
    Publication date: September 24, 2015
    Applicant: Vetco Gray Inc.
    Inventor: Khanh Anh Duong
  • Publication number: 20150255340
    Abstract: Copper can be etched with selectivity to Ta/TaN barrier liner and SiC hardmask layers, for example, to reduce the potential copper contamination. The copper film can be recessed more than the liner to further enhance the protection. Wet etch solutions including a mixture of HF and HCl can be used for selective etching copper with respect to the liner material, for example, the copper film can be recessed between 2 and 3 nm, and the barrier liner film can be recessed between 1.5 and 2 nm.
    Type: Application
    Filed: March 10, 2014
    Publication date: September 10, 2015
    Applicants: GLOBALFOUNDRIES, Inc., Intermolecular Inc.
    Inventors: Anh Duong, Errol Todd Ryan