Patents by Inventor Zhanping Xu

Zhanping Xu 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: 10451741
    Abstract: A continuous wave time of flight (CW-TOF) camera operable to determine distances to features in a scene that are corrected for light that the camera transmits that is back scattered to a photosensor in the camera by structural features of the camera.
    Type: Grant
    Filed: April 30, 2017
    Date of Patent: October 22, 2019
    Assignee: Microsoft Technology Licensing, LLC
    Inventor: Zhanping Xu
  • Publication number: 20190317212
    Abstract: A range camera operable to provide a range image of a scene and a picture of the scene, based on non-visible light and visible light registered for features in the scene on a same photosensor.
    Type: Application
    Filed: April 11, 2018
    Publication date: October 17, 2019
    Inventors: Zhanping Xu, Abdelrehim Ahmed
  • Patent number: 10441932
    Abstract: The present invention relates to an apparatus for gas-liquid distribution. More specifically, the present invention relates to a gas-liquid distribution device that may be used in an ionic liquid co-current gas and liquid up-flow reactor designed to distribute gas uniformly across the reactor cross section through restriction orifices on distributors located across the distribution tray.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: October 15, 2019
    Assignee: UOP LLC
    Inventors: Zhanping Xu, Daniel A. Kauff, Robert J. Sanger, Sathit Kulprathipanja, Emadoddin Abbasi
  • Publication number: 20190299117
    Abstract: The present invention relates to an apparatus for gas-liquid contacting and gas distribution in a bubble contactor. More specifically, the present invention relates to a gas-liquid distribution device that may be used in an ionic liquid co-current gas and liquid up-flow regenerator designed to distribute gas uniformly across the regenerator cross section through restriction orifices on a distribution plate with liquid upcomers.
    Type: Application
    Filed: March 28, 2018
    Publication date: October 3, 2019
    Inventors: Zhanping Xu, Emadoddin Abbasi
  • Publication number: 20190299120
    Abstract: A high capacity and high efficiency co-current and cross-flow vapor-liquid contacting apparatus and process is useful in distillation columns and other vapor-liquid contacting processes. The apparatus is characterized by an arrangement of offset contacting modules in horizontal stages. The modules define a co-current contacting volume and in an exemplary configuration the modules include a liquid distributor and a demister. Half modules comprise downcomers against the shell of the vessel for transporting liquid to the subjacent stage.
    Type: Application
    Filed: March 29, 2018
    Publication date: October 3, 2019
    Inventor: Zhanping Xu
  • Publication number: 20190299138
    Abstract: A high capacity and high efficiency vapor-liquid contacting apparatus and process is useful in distillation columns and other vapor-liquid contacting processes. The apparatus is characterized by a half module comprising a downcomer against a shell of a vessel for transporting liquid to a subjacent stage which utilizes a demister to effect vapor-liquid separation at the downcomer outlet.
    Type: Application
    Filed: March 29, 2018
    Publication date: October 3, 2019
    Inventor: Zhanping Xu
  • Publication number: 20190299119
    Abstract: A high capacity and high efficiency co-current and cross-flow vapor-liquid contacting apparatus and process is useful in distillation columns and other vapor-liquid contacting processes. The apparatus is characterized by an arrangement of contacting modules and perforated receiving pans in horizontal stages. The modules define a co-current contacting volume and in an exemplary configuration the modules include a liquid distributor and a demister. Liquid dispensed from the modules on a perforated receiving pan are contacted with upflowing vapor through perforations therein.
    Type: Application
    Filed: March 29, 2018
    Publication date: October 3, 2019
    Inventor: Zhanping Xu
  • Publication number: 20190265360
    Abstract: A method for determining whether a distance that a CW-TOF range camera provides for a scene is degraded by multipath interference (MPI) comprising operating the camera to determine a propagation phase delay and a phase delay coefficient for each of a plurality of modulation frequencies of light that illuminates the scene and using the phase delay coefficient and/or the phase delay to determine whether a distance provided by the camera is compromised by MPI.
    Type: Application
    Filed: January 10, 2019
    Publication date: August 29, 2019
    Inventor: Zhanping XU
  • Patent number: 10376856
    Abstract: A contacting device and method are presented for the collection, contacting, and distribution of fluids between particulate beds of a downflow vessel, which may operate in co-current flow. By one approach, the contacting device includes a liquid collection tray, a mixing channel in fluid communication with the liquid collection tray, and a liquid distribution zone.
    Type: Grant
    Filed: July 13, 2018
    Date of Patent: August 13, 2019
    Assignee: UOP LLC
    Inventors: Zhanping Xu, Christopher Naunheimer, Pengfei Chen, Peter H. Shafe, Steven J. Lesniak
  • Publication number: 20190232243
    Abstract: The invention involves a scale collection device that is located within downflow reactor head for removing solids from feed streams to increase reactor operating cycle time without impact on effective reactor space for catalyst loading. More particularly, a filtering zone is located in an upper portion of a reactor vessel above a rough liquid distribution tray and a distribution tray.
    Type: Application
    Filed: December 14, 2018
    Publication date: August 1, 2019
    Inventors: Robert L. Bunting, JR., Steven J. Lesniak, Zhanping Xu
  • Publication number: 20190232244
    Abstract: The invention involves a scale collection device that is located within downflow reactor head for removing solids from feed streams to increase reactor operating cycle time without impact on effective reactor space for catalyst loading. More particularly, a filtering zone is located in an upper portion of a reactor vessel above a rough liquid distribution tray and a distribution tray.
    Type: Application
    Filed: December 14, 2018
    Publication date: August 1, 2019
    Inventors: Zhanping Xu, Steven J. Lesniak, Robert L. Bunting, JR.
  • Publication number: 20190232198
    Abstract: The invention involves a scale collection device that is located within downflow reactor head for removing solids from feed streams to increase reactor operating cycle time without impact on effective reactor space for catalyst loading and reactor pressure drop. More particularly, a scale collection device is in an upper portion of a reactor vessel above a rough liquid distribution tray and a vapor-liquid distribution tray.
    Type: Application
    Filed: December 14, 2018
    Publication date: August 1, 2019
    Inventors: Zhanping Xu, Pengfei Chen
  • Publication number: 20190232199
    Abstract: The invention involves a scale collection device that is located within downflow reactor head for removing solids from feed streams to increase reactor operating cycle time without impact on effective reactor space for catalyst loading. More particularly, a filtering zone is located in an upper portion of a reactor vessel above a rough liquid distribution tray and a distribution tray.
    Type: Application
    Filed: December 14, 2018
    Publication date: August 1, 2019
    Inventors: Zhanping Xu, Steven J. Lesniak, Robert L. Bunting, JR.
  • Publication number: 20190219696
    Abstract: A method of determining distances to features in a scene comprising transmitting structured light modulated at a modulation frequency to illuminate the scene with a structured illumination pattern and for each combination of a sampling phase offset ?k and a perturbation phase shift ?n, modulating sensitivity of a photo sensor at the frequency of modulation of the transmitted light, but phase shifted relative to phase of the transmitted light by a phase ?k,n=(?k+?n), and for each value of ?k,n modulo 360°, registering light reflected by features in the scene during a different exposure and using the registered light to provide a range image of the scene.
    Type: Application
    Filed: January 15, 2018
    Publication date: July 18, 2019
    Inventor: Zhanping Xu
  • Publication number: 20190193038
    Abstract: The invention involves a scale collection device that is located within downflow reactor head for removing solids from feed streams to increase reactor operating cycle time without impact on effective reactor space for catalyst loading and reactor pressure drop. More particularly, a scale collection device is located in an upper portion of a reactor vessel above a rough liquid distribution tray and a vapor-liquid distribution tray.
    Type: Application
    Filed: December 14, 2018
    Publication date: June 27, 2019
    Inventors: Zhanping Xu, Pengfei Chen, Robert L. Bunting, JR.
  • Publication number: 20190193039
    Abstract: The invention involves a scale collection device that is located within downflow reactor head for removing solids from feed streams to increase reactor operating cycle time without impact on effective reactor space for catalyst loading. More particularly, a filtering zone is located in an upper portion of a reactor vessel above a rough liquid distribution tray and a distribution tray.
    Type: Application
    Filed: December 14, 2018
    Publication date: June 27, 2019
    Inventor: Zhanping Xu
  • Patent number: 10281209
    Abstract: A reboiler in fluid communication with a fractionator column in an offshore low temperature process removing carbon dioxide from natural gas has a vessel volume. A carbon steel tubing bundle is disposed within the vessel volume. Each tube in the bundle has an outer surface with a porous granular metal layer deposited thereon. The granular metal layer comprises a pore size distribution which promotes bubble nucleation during vaporization of a nearly pure liquid carbon dioxide stream.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: May 7, 2019
    Assignee: UOP LLC
    Inventors: Lubo Zhou, Thomas J. Godry, Zhanping Xu
  • Publication number: 20190105627
    Abstract: A contacting device and method are presented for the collection, contacting, and distribution of fluids between particulate beds of a downflow vessel, which may operate in co-current flow.
    Type: Application
    Filed: July 16, 2018
    Publication date: April 11, 2019
    Inventors: Zhanping Xu, Christopher Naunheimer, Pengfei Chen
  • Publication number: 20190105629
    Abstract: A contacting device and method are presented for the collection, contacting, and distribution of fluids between particulate beds of a downflow vessel, which may operate in co-current flow. By one approach, the contacting device includes a liquid collection tray, a mixing channel in fluid communication with the liquid collection tray, and a liquid distribution zone.
    Type: Application
    Filed: July 13, 2018
    Publication date: April 11, 2019
    Inventors: Zhanping Xu, Christopher Naunheimer, Pengfei Chen, Steven J. Lesniak
  • Publication number: 20190076806
    Abstract: A contacting device and method are presented for the collection, contacting, and distribution of fluids between particulate beds of a downflow vessel, which may operate in co-current flow. By one approach, the contacting device includes a liquid collection tray, a mixing channel in fluid communication with the liquid collection tray, and a liquid distribution zone.
    Type: Application
    Filed: July 16, 2018
    Publication date: March 14, 2019
    Inventors: Zhanping Xu, Christopher Naunheimer, Pengfei Chen, Peter H. Shafe