Patents by Inventor Wilson Chung

Wilson Chung 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: 9534273
    Abstract: The present invention is directed to a precious metal recovery process in which an acid sulfidic feed material is subjected to acid pressure oxidation and an alkaline sulfidic feed material is subjected to alkaline pressure oxidation, with the discharge slurries from the pressure oxidation processes being combined to reduce neutralization requirements prior to precious metal recovery.
    Type: Grant
    Filed: December 11, 2013
    Date of Patent: January 3, 2017
    Inventors: John William Langhans, Jr., Wilson Chung-Yeh Tsu
  • Patent number: 8837586
    Abstract: Plural representations of a video stream may be provided. The plural representations may comprise a first chunk, a second chunk, and a transition chunk. The first chunk may comprise a first bitrate and the second chunk may comprise a second bitrate. The first and second chunks may be in decode order starting with an instantaneous decoding refresh (IDR) frame. The transition chunk may be in decode order starting with a non-IDR frame. Next, a request to transition from the first chunk to the second chunk may be received. Then a transition from the first chunk to the transition chunk responsive to the request may occur and the transition chunk may then be provided to another device.
    Type: Grant
    Filed: October 10, 2011
    Date of Patent: September 16, 2014
    Assignee: Cisco Technology, Inc.
    Inventors: Ali C. Begen, Wilson Chung
  • Publication number: 20140096649
    Abstract: The present invention is directed to a precious metal recovery process in which an acid sulfidic feed material is subjected to acid pressure oxidation and an alkaline sulfidic feed material is subjected to alkaline pressure oxidation, with the discharge slurries from the pressure oxidation processes being combined to reduce neutralization requirements prior to precious metal recovery.
    Type: Application
    Filed: December 11, 2013
    Publication date: April 10, 2014
    Applicant: Barrick Gold Corporation
    Inventors: John William Langhans, Wilson Chung-Yeh Tsu
  • Patent number: 8623115
    Abstract: The present invention is directed to a precious metal recovery process in which an acid sulfidic feed material is subjected to acid pressure oxidation and an alkaline sulfidic feed material is subjected to alkaline pressure oxidation, with the discharge slurries from the pressure oxidation processes being combined to reduce neutralization requirements prior to precious metal recovery.
    Type: Grant
    Filed: November 21, 2011
    Date of Patent: January 7, 2014
    Assignee: Barrick Gold Corporation
    Inventors: John William Langhans, Jr., Wilson Chung-Yeh Tsu
  • Publication number: 20130089142
    Abstract: Plural representations of a video stream may be provided. The plural representations may comprise a first chunk, a second chunk, and a transition chunk. The first chunk may comprise a first bitrate and the second chunk may comprise a second bitrate. The first and second chunks may be in decode order starting with an instantaneous decoding refresh (IDR) frame. The transition chunk may be in decode order starting with a non-IDR frame. Next, a request to transition from the first chunk to the second chunk may be received. Then a transition from the first chunk to the transition chunk responsive to the request may occur and the transition chunk may then be provided to another device.
    Type: Application
    Filed: October 10, 2011
    Publication date: April 11, 2013
    Applicant: Cisco Technology, Inc.
    Inventors: Ali C. Begen, Wilson Chung
  • Publication number: 20120128528
    Abstract: The present invention is directed to a precious metal recovery process in which an acid sulfidic feed material is subjected to acid pressure oxidation and an alkaline sulfidic feed material is subjected to alkaline pressure oxidation, with the discharge slurries from the pressure oxidation processes being combined to reduce neutralization requirements prior to precious metal recovery.
    Type: Application
    Filed: November 21, 2011
    Publication date: May 24, 2012
    Applicant: Barrick Gold Corporation
    Inventors: John William Langhans, JR., Wilson Chung-Yeh Tsu
  • Patent number: 7243537
    Abstract: A method of determining the supercharge pressure in a formation intersected by a borehole having a wall, the method comprising disposing a formation pressure test tool into the borehole having a probe for isolating a portion of the borehole. The method further comprises extending the probe into sealing contact with the borehole wall. The method further comprises performing at least one drawdown test with the formation pressure test tool. The method further comprises modeling the supercharge pressure of the formation using the dynamic properties of the mudcake. The method further comprises determining the supercharge pressure of the formation using the supercharge pressure model. The formation pressure test tool may be conveyed into the borehole using wireline technology or on a drill string. Using the supercharge pressure, the drawdown test may be optimized, the characteristics of the drilling fluid altered, or the measurements of other sensors adjusted.
    Type: Grant
    Filed: March 1, 2005
    Date of Patent: July 17, 2007
    Assignee: Halliburton Energy Services, Inc
    Inventors: Mark A. Proett, Wilson Chung-Ling Chin, Jean Michel Beique, John R. Hardin, Jr., James M. Fogal, David Welshans, Glenn C. Gray
  • Patent number: 5787052
    Abstract: A pressure pulse generator, or "pulser," and methods for operation are described. The pulser is constructed of a stator and rotor mounted within a housing, each being configured with a central hub and one or more radially extending lobes. An equal number of ports are spaced between the lobes. The lobes of the rotor are cross-sectionally tapered in the streamwise direction. The rotor and stator are maintained within the housing in a coaxial spaced relation from each other. The axial distance between the rotor and stator may be selectively varied by a linear actuator. In a preferred embodiment, the linear actuator comprises a conventional solenoid assembly which is operably associated with the rotor to move it axially within the housing with respect to the stator between a first position, wherein the distance between the rotor and stator is reduced, and a second position, wherein the distance between the rotor and stator is increased. The linear actuator is energized in response to signals from an encoder.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: July 28, 1998
    Assignee: Halliburton Energy Services Inc.
    Inventors: Wallace Reid Gardner, Wilson Chung-Ling Chin
  • Patent number: 5003643
    Abstract: A flush controller for a toilet bowl which can be readily added to the water reservoir of the currently used toilet bowl, includes a detecting device for detecting that a user has approached the toilet bowl to within a predetermined effective distance, that the user has remained within the predetermined effective distance for a first predetermined period of time, and that the user has left the predetermined effective distance.
    Type: Grant
    Filed: November 14, 1989
    Date of Patent: April 2, 1991
    Inventor: Wilson Chung