Patents by Inventor Wai Leung

Wai Leung 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: 20180058705
    Abstract: A heating system includes a single thermostat that controls multiple thermostatic radiator valve (TRV) controllers that control heat transfer to radiators in a room. Each TRV controller has the capability to automatically detect the open/closing point and maximum heating point and to register corresponding pin positions of the valve. Each TRV controller is subsequently instructed by the thermostat to adjust the valve in relation to a determined percentage of the registered pin positions, thus accounting for the varying characteristics among the valves in the system. The TRV controller detects the maximum heating point by checking the rate of temperature rising and the open/closing point by sensing the temperature turning point through a temperature sensor situated appropriately in relation to the associated radiator.
    Type: Application
    Filed: September 1, 2016
    Publication date: March 1, 2018
    Inventors: Wai-Leung Ha, Philip John Smith, Hong Bin Liao
  • Publication number: 20180054092
    Abstract: A system utilizes the colocation of the sensing and the control or other powered sections of the product to supplement the environmental conditions in which the energy harvesting sensors operate, thus providing a robust energy source for sensors to operate.
    Type: Application
    Filed: August 18, 2017
    Publication date: February 22, 2018
    Inventors: Brenton James Judge, Wai-Leung Ha, Kwok Wa Kenny Kam, Chi Lung Chan, San Bao Gordon Qian, Xiao Jun Zhang
  • Patent number: 9895200
    Abstract: Example embodiments relate to surgical systems having end-effector assembly, first and second arm assemblies, and elbow joint assembly. End-effector assembly includes instrument assembly and wrist assembly. Instrument assembly includes a first instrument. First arm assembly includes a body, first and second instrument drive assemblies, wrist drive assembly, and first arm drive assembly. First instrument drive assembly is configurable to move first instrument relative to first axis. Wrist drive assembly is configurable to move instrument assembly relative second axis. First arm drive assembly is configurable to rotate end-effector assembly relative to third axis. Elbow joint assembly includes elbow pitch joint portion configurable to be driven to move first arm assembly relative to fourth axis. Elbow joint assembly also includes elbow sway joint portion configurable to be driven to move first arm assembly relative to fifth axis.
    Type: Grant
    Filed: May 25, 2017
    Date of Patent: February 20, 2018
    Assignee: BIO-MEDICAL ENGINEERING (HK) LIMITED
    Inventors: Chung Kwong Yeung, Wing Fai Lam, Wai Leung William Cheng
  • Publication number: 20180031251
    Abstract: A self-adjusting balance valve controller controls water flow through a hydronic emitter in a heating and/or cooling temperature control system. The valve controller obtains a measured temperature differential between an inlet and an outlet of the hydronic emitter and determines a displacement of a coupling pin from the measured temperature differential. The valve controller then instructs a driving mechanism to move, through a coupling mechanism, the coupling pin to adjust a valve that results in a desired water flow through the hydronic emitter. The valve controller may maintain a stable temperature differential at a desired differential value, which may be obtained through a user interface or from a memory device. Moreover, the desired differential value may vary with different times of operation or temperature control situations.
    Type: Application
    Filed: April 7, 2017
    Publication date: February 1, 2018
    Inventors: Philip John Smith, Wai-Leung Ha, Dean Richard Jepson, Chung-Ming Cheng, Kwok Wa Kenny Kam, Hao-Hui Huang, Dick Kwai Chan, Hong Bin Liao
  • Publication number: 20170365142
    Abstract: An entry sensor, which supports either wireless or wired operation, facilitates installation and is adjustable for gaps between a building entry barrier such as a door or window and the surrounding frame. The sensor, which may be implemented as a single piece design, includes an adjustment mechanism that enables an installer to vary the extension of the sensor to match the actual gap so that the sensor properly secures the building entry when closed. The sensor includes a detector that determines the state of a switch that is responsive to the movement of a plunger mechanism, where the state is indicative whether the building entry barrier is opened or closed, and that may determine whether the sensor is tampered with. The sensor also may facilitate battery replacement that protects the associated circuitry during the replacement.
    Type: Application
    Filed: September 7, 2017
    Publication date: December 21, 2017
    Inventors: Samuel Hong-Yen Pai, Wai-Leung Ha, Shen Owyang, Dick Kwai Chan, Wai Yin Shum, Kwok Wa Kenny Kam, Guang Quan Feng
  • Publication number: 20170356900
    Abstract: Methods of determining whether a toxicant is present in a cosmetic product, which comprise contacting a teleost embryo with a sample of the cosmetic product or an extract from a sample of the cosmetic product and determining whether the sample or the extract from the sample exerts a toxicity effect on the embryo.
    Type: Application
    Filed: June 8, 2017
    Publication date: December 14, 2017
    Inventors: XUEPING CHEN, ZIXIANG CHEN, WAI LEUNG TAO
  • Publication number: 20170356895
    Abstract: Methods of determining whether a toxicant is present in a consumable product, which comprise contacting a teleost embryo with an extract from a sample of the consumable product and determining whether the extract exerts a toxicity effect on the embryo.
    Type: Application
    Filed: May 19, 2017
    Publication date: December 14, 2017
    Inventors: XUEPING CHEN, ZIXIANG CHEN, WAI LEUNG TAO
  • Publication number: 20170273945
    Abstract: The present invention relates to a pharmaceutical composition for topical administration comprising a compound of formula I, 3-{4-[2-{5-chloro-1-(diphenylmethyl)-2-[2-({[2-(trifluoromethyl)benzyl]sulfonyl}amino)ethyl]-1H-indol-3-yl}ethyl]sulfonyl}phenyl}propanoic acid: or pharmaceutically acceptable salts thereof; and to methods of treating inflammation comprising topical administration of a compositions comprising a compound of formula I.
    Type: Application
    Filed: June 9, 2017
    Publication date: September 28, 2017
    Inventors: Wai Leung LIU, Lynn PURKINS, Michael YEADON
  • Publication number: 20170258536
    Abstract: Example embodiments relate to surgical systems having end-effector assembly, first and second arm assemblies, and elbow joint assembly. End-effector assembly includes instrument assembly and wrist assembly. Instrument assembly includes a first instrument. First arm assembly includes a body, first and second instrument drive assemblies, wrist drive assembly, and first arm drive assembly. First instrument drive assembly is configurable to move first instrument relative to first axis. Wrist drive assembly is configurable to move instrument assembly relative second axis. First arm drive assembly is configurable to rotate end-effector assembly relative to third axis. Elbow joint assembly includes elbow pitch joint portion configurable to be driven to move first arm assembly relative to fourth axis. Elbow joint assembly also includes elbow sway joint portion configurable to be driven to move first arm assembly relative to fifth axis.
    Type: Application
    Filed: May 25, 2017
    Publication date: September 14, 2017
    Inventors: Chung Kwong YEUNG, Wing Fai LAM, Wai Leung William Cheng
  • Patent number: 9761098
    Abstract: An entry sensor, which supports either wireless or wired operation, facilitates installation and is adjustable for gaps between a building entry barrier such as a door or window and the surrounding frame. The sensor, which may be implemented as a single piece design, includes an adjustment mechanism that enables an installer to vary the extension of the sensor to match the actual gap so that the sensor properly secures the building entry when closed. The sensor includes a detector that determines the state of a switch that is responsive to the movement of a plunger mechanism, where the state is indicative whether the building entry barrier is opened or closed, and that may determine whether the sensor is tampered with. The sensor also may facilitate battery replacement that protects the associated circuitry during the replacement.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: September 12, 2017
    Assignee: Salus Controls, Inc.
    Inventors: Samuel Hong-Yen Pai, Wai-Leung Ha, Shen Owyang, Dick Chan, Wai Yin Shum, Kwok Wa Kenny Kam, Guang Quan Feng
  • Publication number: 20170251990
    Abstract: A cart for housing components of a medical navigation system is provided. The cart comprises a frame including a substantially horizontal base having a bottom side and a top side with wheels attached to the bottom side, a substantially vertical column attached to the top side of the base, and a ballast attached to the base to function as a counterweight to avoid tipping of the cart.
    Type: Application
    Filed: October 17, 2014
    Publication date: September 7, 2017
    Inventors: Leila KHERADPIR, William Wai-Leung LAU, Joshua Lee RICHMOND, Thanh Vinh VUONG
  • Patent number: 9693995
    Abstract: The present invention relates to a pharmaceutical composition for topical administration comprising a compound of formula I, 3-{4-[2-{5-chloro-1-(diphenylmethyl)-2-[2-({[2-(trifluoromethyl)benzyl]sulfonyl}amino)ethyl]-1H-indol-3-yl}ethyl]sulfonyl}phenyl}propanoic acid: or pharmaceutically acceptable salts thereof; and to methods of treating inflammation comprising topical administration of a compositions comprising a compound of formula I.
    Type: Grant
    Filed: February 4, 2015
    Date of Patent: July 4, 2017
    Assignee: Ziarco Pharma Limited
    Inventors: Wai Leung Liu, Lynn Purkins, Michael Yeadon
  • Publication number: 20170123515
    Abstract: The present invention supports the control of a plurality of controlled devices. With three dimensional accelerometer components, detection of a user action on a remote controller and the orientation of the remote controller are viable through small electronic devices. Aspects of the invention are based on the three dimensional accelerometer components to provide a remote controller that can detect the user action. Based on the user action, the remote controller transmits a signal to the controlled device which conveys the corresponding command. A selected controlled device may be matched to the remote controller. The remote controller and controlled device may also support a learning mode, in which the controlled device sends a list of supported commands to the remote controller. The remote controller then matches an associated action with each command in the command list.
    Type: Application
    Filed: December 6, 2016
    Publication date: May 4, 2017
    Inventors: Wai-Leung Ha, Kairy Kai Lei, Gordon Qian
  • Patent number: 9573908
    Abstract: Using a whole-cell high-throughput screen, eleven molecules were identified that activate V. cholerae quorum sensing (QS). Eight molecules are receptor agonists and three molecules are antagonists of LuxO, the central NtrC-type response regulator that controls the global V. cholerae QS cascade. Pro-QS molecules are used for the development of novel anti-infectives.
    Type: Grant
    Filed: February 20, 2013
    Date of Patent: February 21, 2017
    Assignee: THE TRUSTEES OF PRINCETON UNIVERSITY
    Inventors: Bonnie L. Bassler, Wai-Leung Ng, Lark J. Perez, Jianping Cong, Martin F. Semmelhack
  • Publication number: 20170007576
    Abstract: The present invention relates to a pharmaceutical composition for topical administration comprising a compound of formula I, 3-{4-[2-{5-chloro-1-(diphenylmethyl)-2-[2-({[2-(trifluoromethyl)benzyl]sulfonyl}amino)ethyl]-1H-indol-3-yl}ethyl]sulfonyl}phenyl}propanoic acid: or pharmaceutically acceptable salts thereof; and to methods of treating inflammation comprising topical administration of a compositions comprising a compound of formula I.
    Type: Application
    Filed: February 4, 2015
    Publication date: January 12, 2017
    Inventors: Wai Leung LIU, Lynn PURKINS, Michael YEADON
  • Patent number: 9513718
    Abstract: The present invention supports the control of a plurality of controlled devices. With three dimensional accelerometer components, detection of a user action on a remote controller and the orientation of the remote controller are viable through small electronic devices. Aspects of the invention are based on the three dimensional accelerometer components to provide a remote controller that can detect the user action. Based on the user action, the remote controller transmits a signal to the controlled device which conveys the corresponding command. A selected controlled device may be matched to the remote controller. The remote controller and controlled device may also support a learning mode, in which the controlled device sends a list of supported commands to the remote controller. The remote controller then matches an associated action with each command in the command list.
    Type: Grant
    Filed: March 19, 2008
    Date of Patent: December 6, 2016
    Assignee: Computime, Ltd.
    Inventors: Wai-leung Ha, Kairy Kai Lei, Gordon Qian
  • Patent number: D784120
    Type: Grant
    Filed: January 5, 2015
    Date of Patent: April 18, 2017
    Assignee: Merrick Engineering, Inc.
    Inventors: Abraham Abdi, Lau Wai Leung
  • Patent number: D788915
    Type: Grant
    Filed: October 17, 2014
    Date of Patent: June 6, 2017
    Assignee: SYNAPTIVE MEDICAL (BARBADOS) INC.
    Inventors: Leila Kheradpir, William Wai-Leung Lau, Gal Sela, Joshua Lee Richmond
  • Patent number: D794787
    Type: Grant
    Filed: October 17, 2014
    Date of Patent: August 15, 2017
    Assignee: SYNAPTIVE MEDICAL (BARBADOS) INC.
    Inventors: Leila Kheradpir, William Wai-Leung Lau, Gal Sela, Neil Witcomb
  • Patent number: D809927
    Type: Grant
    Filed: July 5, 2016
    Date of Patent: February 13, 2018
    Assignee: SYNAPTIVE MEDICAL (BARBADOS) INC.
    Inventors: William Wai-Leung Lau, Timotheus Anton Gmeiner, Fergal Kerins