Patents by Inventor Ka Leung

Ka 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).

  • Patent number: 12183533
    Abstract: The present invention relates to a linkage structure of a key switch. A second key and a fourth key share one bridge and are connected by a first connecting rod. When the second key or the fourth key is pressed down, the first connecting rod is pushed, so that a first bridge metal dome deforms and is connected to a common contact piece for conduction. A third key and a fifth key share one bridge and are connected by a second connecting. When the third key or the fifth key is pressed down, the second connecting rod is pushed, so that a second bridge metal dome deforms and is connected to the common contact piece for conduction. An input terminal is connected in series to a fuse, and the second key and the fourth key are connected in series to a diode so as to output a rectification half-wave.
    Type: Grant
    Filed: February 6, 2023
    Date of Patent: December 31, 2024
    Assignee: DEFOND ELECTECH CO., LTD
    Inventors: Hua Lin Pan, Xiao Yu Lai, Cheng Chen Nieh, Ka Leung Chan
  • Publication number: 20240415956
    Abstract: Probiotic compositions and methods for enhancing efficacy of COVID-19 vaccination or for reducing adverse effects of COVID-19 vaccination.
    Type: Application
    Filed: October 27, 2022
    Publication date: December 19, 2024
    Inventors: Siew Chien NG, Ka Leung Francis CHAN, Hein Min TUN
  • Patent number: 12163077
    Abstract: The invention provides luminescent lanthanide nanoparticles having simultaneously an improved brightness and an increased lifetime of the excited-state. These nanoparticles comprise terbium ions and ions of a second lanthanide, preferentially europium, and are coated with molecules of chromophore ligand bonded to the surface of the nanoparticle. The ligand is an organic molecule comprising at least one chromophore radical of formula (I) or of formula (II): wherein R is selected from H, CN group or COOH group. The phosphorescence excited-state lifetime is improved by energy transfer from surface terbium ions to core ions of the second lanthanide. The nanoparticle may further comprise a carrier molecule of analytical interest covalently attached to at least one ligand molecule.
    Type: Grant
    Filed: July 4, 2019
    Date of Patent: December 10, 2024
    Assignees: UNIVERSITE DE STRASBOURG, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE PARIS SACLAY, HONG KONG BAPTIST UNIVERSITY
    Inventors: Ka-Leung Wong, Joan Goetz, Loïc Charbonniere, Niko Hildebrandt, Aline Nonat, Cyrille Charpentier, Marcelina Cardoso Dos Santos, Vjona Cifliku
  • Publication number: 20240372443
    Abstract: The present invention provides a motor encoder with a programmable and tactile feedback and an operation method thereof. The encoder includes: a rotary knob; a motor for providing virtual stopping, virtual termination and virtual elastic loading when the knob is turned, and generating a tactile feedback and resistance in different events; a position sensor for providing position information when the knob is started and in a movement process; a controller with a motor driver, wherein the controller is electrically connected with the motor and the position sensor respectively and used for obtaining a position feedback from the position sensor and driving the motor to form closed-loop torque feedback control; and an input interface electrically connected with the controller and used for inputting instruction information to the controller.
    Type: Application
    Filed: July 15, 2024
    Publication date: November 7, 2024
    Applicant: DEFOND ELECTECH CO., LTD
    Inventors: Kai Kei Poon, Siu Hung Lee, Ho Kan Low, Ka Leung Chan, Cheng Chen NIEH
  • Publication number: 20240301510
    Abstract: A noninvasive methods for assessing the likelihood of recurrence of colorectal adenoma among patients who have previously undergone a procedure for colorectal cancer or adenoma removal as well as methods for reducing risk of colorectal adenoma recurrence in these patients. Kits useful for such methods are also provided.
    Type: Application
    Filed: November 18, 2021
    Publication date: September 12, 2024
    Inventors: Siew Chien NG, Ka Leung Francis CHAN, Qiaoyi LIANG
  • Publication number: 20240279748
    Abstract: The present invention provides for compositions and methods for the early detection of prodromal Parkinson's Disease as well as for early medical intervention, especially among individual who may not have been diagnosed but are at an elevated risk of later developing Parkinson's Disease and related conditions.
    Type: Application
    Filed: February 16, 2024
    Publication date: August 22, 2024
    Inventors: Yun Kwok WING, Bei HUANG, Hei Ming LAI, Kay Sheung Paul CHAN, Ka Leung CHAN, Chung Tong Vincent MOK
  • Publication number: 20240275828
    Abstract: Various embodiments of the present invention describe techniques that perform account registration management operations with respect to an account registration session based on a real-time registration processing output that is generated based on an earlier-generated preliminary risk category, such as a preliminary risk category that is generated before the account registration session is completed. In some embodiments, by generating a component of the real-time registration processing output during the account registration session, the disclosed techniques enable reducing the data processing time associated with generating the real-time registration processing output, thus increasing the speed and operational reliability of an electronic data management system that is configured to perform account registration management operations.
    Type: Application
    Filed: April 24, 2024
    Publication date: August 15, 2024
    Inventors: Tessa C. Naroditsky, Yvonne Yue Hong Zhao, Adrianne M. Petrutis-Brewer, Elizabeth M. Scott, Ka Leung
  • Publication number: 20240222042
    Abstract: The present invention relates to a linkage structure of a key switch. A second key and a fourth key share one bridge and are connected by a first connecting rod. When the second key or the fourth key is pressed down, the first connecting rod is pushed, so that a first bridge metal dome deforms and is connected to a common contact piece for conduction. A third key and a fifth key share one bridge and are connected by a second connecting. When the third key or the fifth key is pressed down, the second connecting rod is pushed, so that a second bridge metal dome deforms and is connected to the common contact piece for conduction. An input terminal is connected in series to a fuse, and the second key and the fourth key are connected in series to a diode so as to output a rectification half-wave.
    Type: Application
    Filed: February 6, 2023
    Publication date: July 4, 2024
    Applicant: DEFOND ELECTECH CO., LTD
    Inventors: Hua Lin Pan, Xiao Yu Lai, Cheng Chen Nieh, Ka Leung Chan
  • Patent number: 11997145
    Abstract: Various embodiments of the present invention describe techniques that perform account registration management operations with respect to an account registration session based on a real-time registration processing output that is generated based on an earlier-generated preliminary risk category, such as a preliminary risk category that is generated before the account registration session is completed. In some embodiments, by generating a component of the real-time registration processing output during the account registration session, the disclosed techniques enable reducing the data processing time associated with generating the real-time registration processing output, thus increasing the speed and operational reliability of an electronic data management system that is configured to perform account registration management operations.
    Type: Grant
    Filed: August 17, 2022
    Date of Patent: May 28, 2024
    Assignee: Wells Fargo Bank, N.A.
    Inventors: Tessa C. Naroditsky, Yvonne Yue-Hong Zhao, Adrianne M. Petrutis-Brewer, Elizabeth M. Scott, Ka Leung
  • Publication number: 20240140219
    Abstract: A charging system for executing a charging process during a charging frame is provided. The charging system includes one or more electric vehicles (EV) chargers; a load management system (LMS) capable of controlling the one or more EV chargers; a network system comprising one or more wired or wireless connections for linking the one or more EV chargers to the load management system; and a precision-time energy-based control algorithm for dynamically regulating an output power of the one or more EV chargers to meet a preset charging profile. The charging frame is divided into a plurality of sections and the LMS adjusts the output power of each section for compensating an energy shortage in previous sections.
    Type: Application
    Filed: October 24, 2023
    Publication date: May 2, 2024
    Inventors: Ka-Leung AU, Chi Wai Edwin CHAN, Ka Wing Kelvin WONG
  • Publication number: 20240127904
    Abstract: The present invention relates to methods for assessing one's risk for suffering from severe COVID or long COVID symptoms. Also provided are methods for reducing the risk of developing severe COVID and/or long COVID symptoms.
    Type: Application
    Filed: June 22, 2023
    Publication date: April 18, 2024
    Inventors: Siew Chien NG, Ka Leung Francis CHAN, Qin LIU
  • Patent number: 11938195
    Abstract: The present disclosure provides EBNA1 and LMP1 dual-targeting peptides and upconversion nanoparticles conjugates comprising the same useful as therapeutic and theranostic agents capable of targeting EBNA1 and LMP1 proteins present in Epstein-Barr virus infected cells, such as cancer.
    Type: Grant
    Filed: June 11, 2021
    Date of Patent: March 26, 2024
    Assignee: BP InnoMed Limited
    Inventors: Ka-Leung Wong, Hong Lok Lung, Shuai Zha, Ho-Fai Chau
  • Publication number: 20230321166
    Abstract: The present invention resides in the discovery that altered abundance of fungal species in the gut and feces of both fecal microbiota transplantation (FMT) donors and recipients may influence the outcome of FMT treatment. Thus, novel methods are provided for identifying subjects as suitable donor or recipients for FMT, for assessing the likelihood of FMT treatment success, and for enhancing FMT treatment efficacy. Also provided are kits and compositions for FMT with enhanced efficacy.
    Type: Application
    Filed: December 28, 2022
    Publication date: October 12, 2023
    Inventors: Siew Chien NG, Tao ZUO, Ka Leung Francis CHAN
  • Patent number: 11726067
    Abstract: A detection system (100) and a method for identifying structural change (300) with a substrate (200) includes a sensor (101) configured to resonate at variable frequencies, the resonant frequency of the sensor changing in response to structural change in the substrate, a detector (102) located in proximity to the sensor for detecting the resonant frequency of the sensor, and a receiving device (103) in communication with the detector for receiving information output by the detector, an analyzing device (108) in communication with the receiving device for and interpreting information output by the receiving device. The sensor includes an engagement surface for engaging the substrate. The detector is located on the sensor and away from the engagement surface in such a way that the sensor and the detector are arranged to form a laminated structure.
    Type: Grant
    Filed: March 11, 2022
    Date of Patent: August 15, 2023
    Inventors: Chun Hung Cheng, Ho Lam, Ka Leung Lau
  • Publication number: 20230241128
    Abstract: Methods are provided for treating metabolic diseases by way of modulating recipients' gastrointestinal tract microorganism profile such as by fecal microbiota transplantation (FMT) treatment. Also provided are methods for assessing a patient's risk of developing obesity and/or related metabolic diseases. Further provided are kits and compositions for use in these methods.
    Type: Application
    Filed: May 4, 2021
    Publication date: August 3, 2023
    Inventors: Siew Chien NG, Ka Leung Francis Chan, Tao Zuo
  • Publication number: 20230226123
    Abstract: Provided are methods for treating symptoms of autism spectrum disorder (ASD) in a human child. Methods for determining risk for A SD in human children, methods for assessing developmental age of children and for treating children in need thereof, kits and compositions for use in these methods are also provided.
    Type: Application
    Filed: June 15, 2021
    Publication date: July 20, 2023
    Inventors: Siew Chien NG, Ka Leung Francis CHAN, Zhilu XU, Yating WAN
  • Publication number: 20230227789
    Abstract: Methods and compositions for treating and/or preventing a bacterial infection in a subject are provided, in which the subject is administered a fecal sample obtained from a donor subject via fecal microbiota transplantation (FMT). The fecal sample contains bacteriophages that target the bacteria causing the infection. In some embodiments, the fecal sample containing the bacteriophages can be obtained from a donor subject who previously had the same infection but is now cured.
    Type: Application
    Filed: December 11, 2020
    Publication date: July 20, 2023
    Inventors: Siew Chien NG, Ka Leung Francis CHAN, Qin LIU
  • Publication number: 20230165912
    Abstract: A probiotic composition comprising Bifidobacterium bifidum and Bifidobacterium longum, and may further comprising Bifidobacterium adolescentis and Lactobacillus rhamnosus is provided. A prebiotic composition comprising xylooligosaccharide, galactooligosaccharide, and corn dietary fiber, and a dietary composition comprising the probiotic composition and the prebiotic composition are provided. Use of the foregoing compositions in the preparation of a dietary product or a drug for assisting in preventing and/or treating a pathogen infection of an individual, enhancing the therapeutic effect of a pathogen infection of an individual, improving the immunity of an individual, or balancing the gut microecology of an individual is provided. The foregoing compositions can be used in patients suffering from COVID-19.
    Type: Application
    Filed: April 28, 2021
    Publication date: June 1, 2023
    Inventors: Siew Chien NG, Ka Leung Francis CHAN, Zhilu XU, Wingyan TANG, Qiaoyi LIANG
  • Publication number: 20230165914
    Abstract: Methods are provided for treating COVID-19 patients to facilitate their recovery from the disease as well as for prognosis of severity of COVID-19 among patients who have been infected by SARS-CoV-2. Also provided are kits and compositions for use in these methods.
    Type: Application
    Filed: April 28, 2021
    Publication date: June 1, 2023
    Inventors: Siew Chien NG, Ka Leung Francis CHAN, Tao ZUO, Yun Kit YEOH
  • Publication number: 20230127830
    Abstract: The present invention provides for compositions and methods for treating long COVID symptoms or reducing the risk of developing such symptoms.
    Type: Application
    Filed: October 25, 2022
    Publication date: April 27, 2023
    Inventors: Siew Chien NG, Ka Leung Francis CHAN, Qin LIU