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: 20190060015
    Abstract: Example embodiments relate generally to surgical systems. The system may include a first arm assembly having a first arm assembly body. The system may also include a distal elbow joint assembly secured to a proximal end of the first arm assembly. The distal elbow joint assembly may be configurable to provide the first arm assembly with a first degree of freedom relative to a first axis. The system may also include a proximal elbow joint assembly secured to the distal elbow joint assembly. The proximal elbow joint assembly may be configurable to provide the first arm assembly with a second degree of freedom relative to a second axis. The second axis may be different from the first axis. The first degree of freedom may be different from the second degree of freedom.
    Type: Application
    Filed: October 26, 2018
    Publication date: February 28, 2019
    Inventors: Chung Kwong Yeung, Wing Fai Lam, Wai Leung William Cheng
  • Publication number: 20190036561
    Abstract: An NFC watch includes a metal shell, a support and an NFC antenna arranged at the top of the support, wherein the support is mounted at the bottom of the metal shell, and the NFC antenna is clamped between the metal shell and the support and exposed to the outside. The NFC watch further includes a PCB arranged in the support and electrically connected with the NFC antenna and a power supply arranged at the bottom of the support and used for supplying power to the PCB. The NFC watch is simple in structure and high in practicability.
    Type: Application
    Filed: May 25, 2016
    Publication date: January 31, 2019
    Inventors: Anan WEN, Ka Wai LEUNG
  • Patent number: 10172680
    Abstract: Example surgical systems include end-effector assembly, arm assembly, and elbow joint assembly. Arm assembly includes proximal and distal ends. Elbow joint assembly secures proximal end of arm assembly to distal end of second arm assembly. Elbow joint assembly includes first and second elbow joint portions. First elbow joint portion includes first end section secured to proximal end of arm assembly, second end section, and first joint joining first and second end sections of first elbow joint portion. Second elbow joint portion includes first end section secured to second end section of first elbow joint portion, second end section secured to distal end of second arm assembly, and second joint joining first and second end sections of second elbow joint portion. First end section of first and second elbow joint portion are pivotable relative to first and second axes, respectively, formed by center line drawn through first and second joints, respectively.
    Type: Grant
    Filed: January 8, 2018
    Date of Patent: January 8, 2019
    Assignee: Bio-Medical Engineering (HK) Limited
    Inventors: Chung Kwong Yeung, Wing Fai Lam, Wai Leung William Cheng
  • Publication number: 20180372342
    Abstract: A thermostatic radiator valve (TRV) assembly or automatic temperature balanced actuator (ABA) assembly controls a manifold assembly through a push pin bearing mechanism. The push pin bearing mechanism comprises a push pin that moves in a linear direction responsive to rotational movement of a motor gear that is coupled through a helical gear. Rotational movement of the push pin is prevented by a ball bearing assembly. Movement of the push pin is transferred to a manifold pin, which in turn, controls the manifold assembly. Because the push pin moves in a linear rather than a rotational fashion, erosion of the mated manifold pin is substantially reduced with respect to transitional approaches.
    Type: Application
    Filed: January 12, 2018
    Publication date: December 27, 2018
    Inventors: Dick Kwai Chan, Hamza Yilmaz, Ben Ren Tan, Wai-Leung Ha
  • Publication number: 20180356477
    Abstract: Optionally adjustable head coil system and methods for enhancing and/or optimizing magnetic resonance imaging, involving a housing, the housing having at least one portion, the at least one portion having a lower portion, an upper portion, and opposing side portions, each at least one portion optionally in movable relation to any other portion for facilitating adjustability, each at least one portion configured to accommodate at least one radio-frequency coil, and the upper and lower portions each optionally configured to overlap and engage the opposing side portions for facilitating decoupling the at least one radio-frequency coil, and a tongue portion optionally in movable relation to any other portion for facilitating adjustability, engageable with the lower portion, and fixably couple-able with a transporter.
    Type: Application
    Filed: January 27, 2016
    Publication date: December 13, 2018
    Inventors: William Wai-Leung LAU, Alexander Gyles PANTHER, Gilbert THEVATHASAN, Mark Tullio MORREALE
  • Patent number: 10130148
    Abstract: A snap button has a female portion formed from a cap and a socket that are connected together with a piece of fabric in between. The cap is formed from a base body having a circumferential flange with interruptions therein so that the flange can be bent outward during assembly. The socket is formed by a disc having a central aperture and a peripheral rim, as well as an annular insert disposed within the socket. The cap is connected to the socket by pressing the socket onto the cap until the flange bends around the annular insert to anchor the cap to the socket with the fabric trapped between. A male portion having a stud is connected to the female portion by snapping the stud into the socket such that the stud extends entirely through the socket and into the cap.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: November 20, 2018
    Assignee: Duraflex Hong Kong Limited
    Inventors: Wai Leung Au, Yick Fai Chan
  • Publication number: 20180221242
    Abstract: A wheelchair seat cushion comprises a back pad module and a seat pad module which is connected with the back pad module. A resilient intermediate layer is provided within the back pad module and the seat pad module. A heat generating device is provided within in the resilient intermediate layer, wherein the heat generating device is positioned corresponding to at least one acupuncture point of a back of a user, and heat generated by the heat generating device is conducted to a body of the user via the at least one acupuncture point in order to keep the body of the user warm.
    Type: Application
    Filed: February 9, 2018
    Publication date: August 9, 2018
    Inventor: Wai Leung LEE
  • Patent number: 10034858
    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: June 9, 2017
    Date of Patent: July 31, 2018
    Assignee: Ziarco Pharma Ltd.
    Inventors: Wai Leung Liu, Lynn Purkins, Michael Yeadon
  • Publication number: 20180140367
    Abstract: Example surgical systems include end-effector assembly, arm assembly, and elbow joint assembly. Arm assembly includes proximal and distal ends. Elbow joint assembly secures proximal end of arm assembly to distal end of second arm assembly. Elbow joint assembly includes first and second elbow joint portions. First elbow joint portion includes first end section secured to proximal end of arm assembly, second end section, and first joint joining first and second end sections of first elbow joint portion. Second elbow joint portion includes first end section secured to second end section of first elbow joint portion, second end section secured to distal end of second arm assembly, and second joint joining first and second end sections of second elbow joint portion. First end section of first and second elbow joint portion are pivotable relative to first and second axes, respectively, formed by center line drawn through first and second joints, respectively.
    Type: Application
    Filed: January 8, 2018
    Publication date: May 24, 2018
    Inventors: Chung Kwong Yeung, Wing Fai Lam, Wai Leung William Cheng
  • Patent number: 9959719
    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: September 7, 2017
    Date of Patent: May 1, 2018
    Assignee: Salus North America, Inc.
    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: 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
  • 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
  • Patent number: D820984
    Type: Grant
    Filed: January 13, 2017
    Date of Patent: June 19, 2018
    Assignee: SYNAPTIVE MEDICAL (BARBADOS) INC.
    Inventors: Leila Kheradpir, William Wai-Leung Lau
  • Patent number: D839431
    Type: Grant
    Filed: September 14, 2016
    Date of Patent: January 29, 2019
    Assignee: SYNAPTIVE MEDICAL (Barbados) Inc.
    Inventors: Mark Tullio Morreale, William Wai-Leung Lau, Daniel Gavin Harrison