Patents by Inventor Xian Chen

Xian Chen 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: 20180241246
    Abstract: Effects of a surge in an AC input voltage to a UPS is mitigated. If the AC input voltage is overvoltage, the rectifier is operated using a DC bus target voltage for the DC bus voltage unless the rectifier reaches its current limit. If the rectifier reaches its current limit, the DC bus target voltage is increased by a predetermined amount which is used as a current DC bus target voltage unless the increased DC bus target voltage exceeds a maximum DC bus voltage limit in which case the current DC bus target voltage is set to the maximum DC bus voltage limit. The rectifier is then operated using the current DC bus target voltage until it reaches its current limit or the AC input voltage surge has passed. If the rectifier again reaches its current limit, the above steps starting with increasing the DC bus target voltage are repeated.
    Type: Application
    Filed: January 26, 2018
    Publication date: August 23, 2018
    Applicant: Liebert Corporation
    Inventors: Brian P. HEBER, Xian CHEN
  • Publication number: 20180204403
    Abstract: Systems and methods which provide anti-counterfeiting patterns tagged with multi-mode nanotaggants, such as may comprise single-mode nanoparticles, multi-mode nanoparticles, or a combination thereof, are described. The multi-mode nanotaggants of embodiments are configured to exhibit prescribed emissions by excitation at distinct stimulus wavelengths. Decryption of anti-counterfeiting patterns tagged with multi-mode nanotaggants of embodiments of the invention may be achieved by examining temporal color responses of the pattern to varying illuminations. In addition to the various color codes that may be encrypted into an anti-counterfeiting pattern using nanotaggants, embodiments provide various graphic codes that may be encrypted into anti-counterfeiting patterns. Such graphic codes may not only comprise the graphic pattern of the anti-counterfeiting pattern itself, but one or more graphic patterns of nanotaggants of the anti-counterfeiting pattern.
    Type: Application
    Filed: January 13, 2017
    Publication date: July 19, 2018
    Inventors: Feng Wang, Tianying Sun, Xian Chen
  • Publication number: 20180193868
    Abstract: A feeding mold is provided with a charging runner for coating, a feeding runner connected to the charging runner, and a mold base adjacent to the feeding runner. The feeding runner is provided with a splitting manifold communicated with the charging runner, a discharging end face located at the end of feeding runner and apart from an atomizing knife edge of ultrasonic oscillating element by a gap, and a slit channel connected to the splitting manifold and discharging end face. The mold base is connected at a side edge thereof to the bottom of discharging end face, and inclined at a first angle toward the discharging end face. The side edge is located at the lowest position. Accordingly, the backflow of coating on the discharging end face to the mold base from the side edge and formation of trickle are impossible, so as to use coating adequately and avoid pollution.
    Type: Application
    Filed: January 9, 2017
    Publication date: July 12, 2018
    Inventors: Wei-Jen Lo, Chi-Xian Chen, Wei-Ming Chen, Chi-Feng Li
  • Patent number: 10015529
    Abstract: The present invention relates to the technical field of video monitoring application, disclosed are a video image quality diagnostic system and method thereof. In the present invention, on the basis of a video monitoring system, the video image quality diagnostic system is incorporated into the video monitoring system as a dedicated diagnostic network, thus effectively reducing the bandwidth consumption of the video monitoring system and the connecting port consumption of a monitoring device. A polling host polls each video monitoring point via software to view a video image, acquires a code stream, and simultaneously transmits the same code stream to a video image quality diagnostic server for diagnosis via the dedicated diagnostic network; the transmission of the code stream does not occupy the bandwidth of the video monitoring network.
    Type: Grant
    Filed: November 16, 2012
    Date of Patent: July 3, 2018
    Assignee: HANGZHOU HIKVISION DIGITAL TECHNOLOGY CO., LTD.
    Inventors: Bin Guo, Xian Chen
  • Patent number: 9968621
    Abstract: Parenteral (injectable) celecoxib emulsions and nanoemulsions are disclosed as are their use to treat pain in patients so afflicted. The emulsions are generally oil in water emulsions often comprised of an oil phase including an oil and a lecithin wherein the mean droplet size of the discontinuous oil phase is about 200 nanometers or less.
    Type: Grant
    Filed: August 18, 2016
    Date of Patent: May 15, 2018
    Assignee: Dr. Reddy's Laboratories Ltd.
    Inventors: Franklin Okumu, Jan-Jon Chu, Julie Ann Webb, Rafael Anthony Sabino, Andrew Xian Chen
  • Patent number: 9843188
    Abstract: A multiple uninterruptible power supply system includes at least two uninterruptible power supply modules. Each uninterruptible power supply module has a control unit with the control unit coupled to a synchronization bus. The uninterruptible power supply module are synchronized to each other with one of the uninterruptible power supply modules being operated as a sync master UPS and its control unit sending synchronization signals on the synchronization bus that are received on the synchronization bus by control units of each of the other uninterruptible power supply module which are each operated as a slave UPS synchronized to the sync master UPS. When a bypass power source for the uninterruptible power supply module that is being operated as the sync master becomes unqualified, another one of the UPS modules is operated as the sync master and its control unit then sends out the synchronization signals.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: December 12, 2017
    Assignee: Liebert Corporation
    Inventors: Xian Chen, Brian P. Heber
  • Publication number: 20170304396
    Abstract: This invention relates to aqueous solution compositions of vancomycin that are stable, ready for use and do not require reconstitution.
    Type: Application
    Filed: July 13, 2017
    Publication date: October 26, 2017
    Applicant: LATITUDE PHARMACEUTICALS, INC.
    Inventor: ANDREW XIAN CHEN
  • Patent number: 9790951
    Abstract: A shaftless fan includes a fan stator, a vane rotor and a rolling bearing. The rolling bearing is installed between the fan stator and the vane rotor and includes an inner ring, an outer ring, and a plurality of rolling elements rollably installed between the inner and outer rings, and the inner and outer rings of the rolling bearing are rotated in opposite direction with respect to each other, so that the vane rotor can be rotated on the fan stator to connect the fan stator with the vane rotor through the rolling bearing, so as to achieve the shaftless effect.
    Type: Grant
    Filed: March 9, 2015
    Date of Patent: October 17, 2017
    Assignee: COOLER MASTER (KUNSHAN) CO., LTD.
    Inventors: Fu-Lung Lin, Hui-Hai Yang, Tong-Xian Chen
  • Publication number: 20170246109
    Abstract: The present invention provides a clear depot comprising at least one hydrophilic water-soluble pharmaceutically active agent selected from the group consisting of vancomycin, gentamicin, a pharmaceutically acceptable salt thereof and a mixture thereof, water, a phospholipid, an oil, optionally a pH adjusting agent, and a viscosity modifying agent selected from the group consisting of ethanol, isopropanol, and a mixture thereof, wherein the water present in the depot is no more than about 4 wt % relative to the total weight of the depot and the depot has a pH of between about 3 and about 6, method of making and administering same.
    Type: Application
    Filed: May 15, 2017
    Publication date: August 31, 2017
    Inventors: Hailiang CHEN, Andrew Xian CHEN, Dushyanth SURAKANTI, Franklin OKUMU
  • Publication number: 20170244277
    Abstract: A method reduces inrush currents in a transformer-less rectifier UPS system when an input circuit breaker of the UPS system is closed from an open position. The circuit breaker is coupled between an AC power input and an AC input of a rectifier of the UPS system and a DC output of the rectifier is coupled to a DC bus of the UPS system. Before the circuit breaker is closed, the DC bus is charged to a DC voltage having a level that is equal to a peak AC voltage level of a line-line AC voltage of AC input power to the UPS system. The rectifier is operated as an inverter to provide an AC output voltage at the AC input of the rectifier that is equal to an AC voltage at the AC power input and when it is equal, the circuit breaker is closed.
    Type: Application
    Filed: January 23, 2017
    Publication date: August 24, 2017
    Applicant: Liebert Corporation
    Inventors: Charles F. BLAIR, Terry D. BUSH, Xian CHEN
  • Publication number: 20170189532
    Abstract: The present invention is directed to compositions and methods of preparation of phospholipid depots that are injectable through a fine needle.
    Type: Application
    Filed: October 28, 2016
    Publication date: July 6, 2017
    Applicant: Latitude Pharmaceuticals Inc.
    Inventors: Andrew Xian Chen, Hailiang Chen
  • Patent number: 9682040
    Abstract: The present invention provides a clear depot comprising at least one hydrophilic water-soluble pharmaceutically active agent selected from the group consisting of vancomycin, gentamicin, a pharmaceutically acceptable salt thereof and a mixture thereof, water, a phospholipid, an oil, optionally a pH adjusting agent, and a viscosity modifying agent selected from the group consisting of ethanol, isopropanol, and a mixture thereof, wherein the water present in the depot is no more than about 4 wt % relative to the total weight of the depot and the depot has a pH of between about 3 and about 6, method of making and administering same.
    Type: Grant
    Filed: November 10, 2016
    Date of Patent: June 20, 2017
    Assignee: Dr. Reddy's Laboratories Ltd.
    Inventors: Hailiang Chen, Andrew Xian Chen, Dushyanth Surakanti, Franklin Okumu
  • Publication number: 20170168067
    Abstract: Methods for identifying and developing biomarkers based on the characterization of disease-related components of gene-specific chromatin regulatory protein complexes. Chemoprobes that are substrate-competitive and selectively bind enzymatically active enzymes associated with gene-specific chromatin regulatory protein complex can be used to select chromatin complexes associated with a phenotype of interest.
    Type: Application
    Filed: February 11, 2015
    Publication date: June 15, 2017
    Inventor: Xian Chen
  • Patent number: 9637543
    Abstract: Provided herein are antibodies specific for HER3. Also provided are methods of treating cancer in a subject comprising administering an effective amount of the antibodies described herein to the subject.
    Type: Grant
    Filed: November 9, 2012
    Date of Patent: May 2, 2017
    Assignees: THE UAB RESEARCH FOUNDATION, BEIJING COTIMES BIOTECH CO., LTD.
    Inventors: Tong Zhou, Donald J. Buchsbaum, Enyun Shen, Xian Chen
  • Patent number: 9631638
    Abstract: A thinned heat dissipation fan with core reversely installed includes: a base including a bottom plate and a lateral wall formed at the periphery of the bottom plate; a circuit unit disposed on the bottom plate; a core welded in a core welding hole formed on the bottom plate of the base or welded in a core welding hole of a sleeve seat fastened on the base; and a rotor set including a hub, a plurality of blades disposed at the periphery of the hub, a bearing module and a permanent magnet disposed at the inner sides of the plural blades, wherein the hub is formed with a bearing opening, the bearing module is fastened in the bearing opening, and the core is inserted in the bearing module. The above-mentioned welding means is preferably to be a laser welding means.
    Type: Grant
    Filed: December 3, 2014
    Date of Patent: April 25, 2017
    Assignee: COOLER MASTER (KUNSHAN) CO., LTD.
    Inventors: Fu-Lung Lin, Hui-Hai Yang, Tong-Xian Chen
  • Publication number: 20170056326
    Abstract: The present invention provides a clear depot comprising at least one hydrophilic water-soluble pharmaceutically active agent selected from the group consisting of vancomycin, gentamicin, a pharmaceutically acceptable salt thereof and a mixture thereof, water, a phospholipid, an oil, optionally a pH adjusting agent, and a viscosity modifying agent selected from the group consisting of ethanol, isopropanol, and a mixture thereof, wherein the water present in the depot is no more than about 4 wt % relative to the total weight of the depot and the depot has a pH of between about 3 and about 6, method of making and administering same.
    Type: Application
    Filed: November 10, 2016
    Publication date: March 2, 2017
    Inventors: Hailiang Chen, Andrew Xian Chen, Dushyanth Surakanti, Franklin Okumu
  • Patent number: 9562010
    Abstract: An isotope labeled asymmetric cross-linker is provided for the detection of cross-linked peptides. A cross-linking and mass spectrometry strategy, referred to as isotope tagging of interacting proteins (iTIP), improves the specificity of detecting cross-linked peptides and accurate identification of the interacting peptide sequences via the incorporation of isotopic signatures that are readily observed in the MS/MS spectrum. Isotope tagged peptides can be identified using mass spectrometry based on doublet peaks in a spectrum. Spectra can be subjected to database search strategies available for the sequencing of linear or non-cross-linked peptides.
    Type: Grant
    Filed: January 22, 2014
    Date of Patent: February 7, 2017
    Assignee: The University of North Carolina at Chapel Hill
    Inventors: Harsha P. Gunawardena, Xian Chen
  • Patent number: 9522169
    Abstract: The present invention provides a clear depot comprising at least one hydrophilic water-soluble pharmaceutically active agent selected from the group consisting of vancomycin, gentamicin, a pharmaceutically acceptable salt thereof and a mixture thereof, water, a phospholipid, an oil, optionally a pH adjusting agent, and a viscosity modifying agent selected from the group consisting of ethanol, isopropanol, and a mixture thereof, wherein the water present in the depot is no more than about 4 wt % relative to the total weight of the depot and the depot has a pH of between about 3 and about 6, method of making and administering same.
    Type: Grant
    Filed: July 7, 2015
    Date of Patent: December 20, 2016
    Assignee: Dr. Reddy's Laboratories Ltd.
    Inventors: Hailiang Chen, Andrew Xian Chen, Dushyanth Surakanti, Franklin Okumu
  • Patent number: 9517202
    Abstract: The present invention is directed to phospholipid compositions and methods of preparation of phospholipid depots that are injectable through a fine needle. The phospholipid depots prepared by the methods described herein comprise nanometer-sized phospholipid particles and exhibit a higher degree of structural order compared to compositions prepared by other methods.
    Type: Grant
    Filed: June 14, 2012
    Date of Patent: December 13, 2016
    Assignee: LATITUDE PHARMACEUTICALS INC.
    Inventors: Andrew Xian Chen, Hailiang Chen
  • Publication number: 20160354390
    Abstract: Parenteral (injectable) celecoxib emulsions and nanoemulsions are disclosed as are their use to treat pain in patients so afflicted. The emulsions are generally oil in water emulsions often comprised of an oil phase including an oil and a lecithin wherein the mean droplet size of the discontinuous oil phase is about 200 nanometers or less.
    Type: Application
    Filed: August 18, 2016
    Publication date: December 8, 2016
    Applicant: Dr. Reddy's Laboratories Ltd.
    Inventors: Franklin Okumu, Jan-Jon Chu, Julie Ann Webb, Rafael Anthony Sabino, Andrew Xian Chen