Patents by Inventor Pui Chan

Pui Chan 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: 20250196170
    Abstract: A household sprayer may include a liquid reservoir configured to store a liquid and a nozzle connected to the liquid reservoir, wherein the nozzle is configured to spray liquid. A household sprayer may include a nozzle actuator connected to the nozzle, wherein the nozzle actuator is configured to control the spray profile of liquid exiting the nozzle, and a pump connected to the nozzle and the liquid reservoir, wherein the pump is configured to cause liquid to flow from the liquid reservoir to the nozzle. A household sprayer may include a battery electrically connected to the pump, wherein the battery is configured to provide power to the pump. A household sprayer may include an outer housing enclosing the liquid reservoir, the pump, and the battery and a sensor disposed beneath the outer housing, wherein activating the sensor causes the pump to activate, thereby causing liquid to spray from the nozzle.
    Type: Application
    Filed: December 12, 2024
    Publication date: June 19, 2025
    Inventors: Frank Yang, Cory Bowman, Ryan Wong, William Conley, Yan Pui Chan, Nasser Pirshafiey
  • Patent number: 11786636
    Abstract: A simple, highly flexible and scalable platform for making functional complex tissues with heterogeneity and irregularity is provided. The method includes combining undifferentiated cells, such as pluripotent or multipotent stem cells, with a biomaterial to make multiple undifferentiated or naïve subunits, exposing the undifferentiated or naïve subunits to different cell culture environments for induction of differentiation towards different lineages as required by that complex tissue, and combining the then functional subunits with or without the undifferentiated subunits. The differentiated subunits thus combined can be cultured under biological, chemical, and/or physical culture conditions suitable to fine-tune the structural and functional properties of the bioengineered complex tissue to form a bioengineered tissue graft that mimics the structural and functional characteristics of native complex tissue. The bioengineered tissue graft can then used to replace dysfunctional tissue.
    Type: Grant
    Filed: June 14, 2011
    Date of Patent: October 17, 2023
    Assignee: VERSITECH LIMITED
    Inventors: Barbara Pui Chan, Hiu Wa Cheng, Daniel Tsz Kit Chik, Kenneth Man Chee Cheung, Keith Dip Kei Luk
  • Publication number: 20230115198
    Abstract: The present disclosure describes a receptacle assembly having receptacle body and a bag liner dispenser connected to the receptacle body. The bag liner dispenser has a biasing member, a magnet, and a sensor. The assembly can have an electronic control unit configured to communicate with the sensor and determine an estimated number of liner bags remaining in the bag liner dispenser at least in part based on one or more characteristics of a magnetic field emitted by the magnet. A network communication device can be connected to the electronic control unit and configured to provide information to a user about bag liners.
    Type: Application
    Filed: October 11, 2022
    Publication date: April 13, 2023
    Inventors: Guy COHEN, Jay PATEL, Yan Pui CHAN, Joseph MEEK, Joseph SANDOR
  • Patent number: 11031521
    Abstract: The present invention provides a transparent conductive thin film which is flexible for suiting substantially all kinds of electronic and optoelectronic devices or display panel. The present conductive thin film includes at least one transparent substrate formed by thermally curable or photo-curable polyermic resin layer, and a conductive network pattern having a high aspect ratio such that at least one surface of the conductive network being exposed out of the deformable layer or the transparent substrate for contacting with an external structure while a large proportion thereof stays firmly integrated into the substrate. The present invention also relates to methods of fabricating a transparent conductive thin film including the structural features of the transparent conductive thin film of the present invention. Various optimizations of the present methods are also provided in the present invention for facilitating large area thin film fabrication and large scale production.
    Type: Grant
    Filed: June 17, 2019
    Date of Patent: June 8, 2021
    Assignee: New Asia Group Holdings Limited
    Inventors: Chung Pui Chan, Wing Hong Choi, Chien Chung
  • Patent number: 11003290
    Abstract: A flexible transparent sensing film with embedded electrodes is described in the present invention, which would greatly improve the optical transmittance, electrical conductivity and reliability. The present sensing film can also simultaneously enable multiple touches for distinct locations sensing and at least another set of electrical signal sensing. The present sensing film includes a top conductive electrode, a bottom conductive electrode (140) and a dielectric substrate or a functional substrate that would generate electrical signal response due to a specific input such as motion, light, chemical, or temperature. The present sensing film apparatus could be configured to have the top and bottom conductive electrodes which are partially or fully embedded onto the surfaces of the dielectric and/or functional substrates.
    Type: Grant
    Filed: October 11, 2018
    Date of Patent: May 11, 2021
    Assignee: New Asia Group Holdings Limited
    Inventors: Chung Pui Chan, Wing Hong Choi, Lai Fan Lai, Chien Chung
  • Patent number: 10942865
    Abstract: A method and apparatus are provided to enable snoop forwarding to occur together with memory protection. A data processing apparatus in, for instance, the form of a home node forwards a snoop forwarding request on behalf of a requester to a target, the snoop forwarding request being capable of indicating one or more access permissions of the target in relation to the data. A further data processing apparatus in the form of, for instance, a receiver node may receive the snoop forwarding request and based on its own permissions that are provided in the snoop forwarding request, together with the state of the data, either provide a response back to the requester or the home node. In a still further data processing apparatus in the form of, for instance, a Memory Protection Unit (MPU), a regular snoop forwarding request made to a target in relation to data can be forwarded to the target or demoted to a non-forwarding snoop request based on the permissions of the target in relation to the data at the MPU.
    Type: Grant
    Filed: June 13, 2019
    Date of Patent: March 9, 2021
    Assignee: Arm Limited
    Inventors: Gurunath Ramagiri, Tushar P. Ringe, Mukesh Patel, Jamshed Jalal, Iat Pui Chan, Lakshmi Joga Vishnu Vardhan Badukonda
  • Publication number: 20200394141
    Abstract: A method and apparatus are provided to enable snoop forwarding to occur together with memory protection. A data processing apparatus in, for instance, the form of a home node forwards a snoop forwarding request on behalf of a requester to a target, the snoop forwarding request being capable of indicating one or more access permissions of the target in relation to the data. A further data processing apparatus in the form of, for instance, a receiver node may receive the snoop forwarding request and based on its own permissions that are provided in the snoop forwarding request, together with the state of the data, either provide a response back to the requester or the home node. In a still further data processing apparatus in the form of, for instance, a Memory Protection Unit (MPU), a regular snoop forwarding request made to a target in relation to data can be forwarded to the target or demoted to a non-forwarding snoop request based on the permissions of the target in relation to the data at the MPU.
    Type: Application
    Filed: June 13, 2019
    Publication date: December 17, 2020
    Applicant: Arm Limited
    Inventors: Gurunath Ramagiri, Tushar P. Ringe, Mukesh Patel, Jamshed Jalal, Iat Pui Chan, Lakshmi Joga Vishnu Vardhan Badukonda
  • Publication number: 20200348775
    Abstract: The present invention provides a novel structure for a weathering-resistant transparent conductive film (TCF) which can be applied on most kinds of flexible electronics, telecommunication components, smart-window, sensing film, optoelectronic devices or display panel, etc. The present weathering-resistant TCF includes at least one transparent substrate, a deformable layer and a multi-layered conductive structure having a high aspect ratio being integrated into the deformable layer forming an enveloped structure such that at least one surface of the conductive network being exposed out of the surface. The enveloped TCF structure enables protection of the underneath conductive layer such that the present weathering-resistant TCF can withstand in extreme temperature, humidity and corrosive environment. The present invention also relates to methods of fabricating a weathering-resistant TCF, which facilitates large area thin film fabrication and large scale production.
    Type: Application
    Filed: May 15, 2020
    Publication date: November 5, 2020
    Inventors: Chung Pui CHAN, Wing Hong CHOI, Chien CHUNG
  • Publication number: 20200233508
    Abstract: A flexible transparent sensing film with embedded electrodes is described in the present invention, which would greatly improve the optical transmittance, electrical conductivity and reliability. The present sensing film can also simultaneously enable multiple touches for distinct locations sensing and at least another set of electrical signal sensing. The present sensing film includes a top conductive electrode, a bottom conductive electrode (140) and a dielectric substrate or a functional substrate that would generate electrical signal response due to a specific input such as motion, light, chemical, or temperature. The present sensing film apparatus could be configured to have the top and bottom conductive electrodes which are partially or fully embedded onto the surfaces of the dielectric and/or functional substrates.
    Type: Application
    Filed: October 11, 2018
    Publication date: July 23, 2020
    Inventors: Chung Pui CHAN, Wing Hong CHOI, Lai Fan LAI, Chien CHUNG
  • Patent number: 10572089
    Abstract: A flexible transparent sensing film with embedded electrodes is described in the present invention, which would greatly improve the optical transmittance, electrical conductivity and reliability. The present sensing film can also simultaneously enable multiple touches for distinct locations sensing and at least another set of electrical signal sensing. The present sensing film includes a top conductive electrode, a bottom conductive electrode and a dielectric substrate or a functional substrate that would generate electrical signal response due to a specific input such as motion, light, chemical, or temperature. The present sensing film apparatus could be configured to have the top and bottom conductive electrodes which are partially or fully embedded onto the surfaces of the dielectric and/or functional substrates.
    Type: Grant
    Filed: September 29, 2018
    Date of Patent: February 25, 2020
    Assignees: MIND TECHNOLOGY DEVELOPMENT LIMITED, NEW ASIA GROUP HOLDINGS LIMITED
    Inventors: Chung Pui Chan, Wing Hong Choi, Lai Fan Lai, Kwok Keung Paul Ho, Chien Chung
  • Publication number: 20190334055
    Abstract: The present invention provides a transparent conductive thin film which is flexible for suiting substantially all kinds of electronic and optoelectronic devices or display panel. The present conductive thin film includes at least one transparent substrate formed by thermally curable or photo-curable polyermic resin layer, and a conductive network pattern having a high aspect ratio such that at least one surface of the conductive network being exposed out of the deformable layer or the transparent substrate for contacting with an external structure while a large proportion thereof stays firmly integrated into the substrate. The present invention also relates to methods of fabricating a transparent conductive thin film including the structural features of the transparent conductive thin film of the present invention. Various optimizations of the present methods are also provided in the present invention for facilitating large area thin film fabrication and large scale production.
    Type: Application
    Filed: June 17, 2019
    Publication date: October 31, 2019
    Inventors: Chung Pui CHAN, Wing Hong CHOI, Chien CHUNG
  • Patent number: 10329660
    Abstract: The present invention provides a transparent conductive thin film which is flexible for suiting substantially all kinds of electronic and optoelectronic devices or display panel. The present conductive thin film includes at least one transparent substrate, a deformable layer and a conductive network pattern having a high aspect ratio such that at least one surface of the conductive network being exposed out of the deformable layer or the transparent substrate for contacting with an external structure while a large proportion thereof stays firmly integrated into the substrate. The present invention also relates to methods of fabricating a transparent conductive thin film including the structural features of the transparent conductive thin film of the present invention. Various optimizations of the present methods are also provided in the present invention for facilitating large area thin film fabrication and large scale production.
    Type: Grant
    Filed: July 12, 2017
    Date of Patent: June 25, 2019
    Assignees: MIND TECHNOLOGY DEVELOPMENT LIMITED, NEW ASIA GROUP HOLDINGS LIMITED
    Inventors: Chung Pui Chan, Lai Fan Lai, Wing Hong Choi, Bin Zhang, Kwok Keung Paul Ho, Chien Chung, Chun Pong Lee
  • Publication number: 20190034008
    Abstract: A flexible transparent sensing film with embedded electrodes is described in the present invention, which would greatly improve the optical transmittance, electrical conductivity and reliability. The present sensing film can also simultaneously enable multiple touches for distinct locations sensing and at least another set of electrical signal sensing. The present sensing film includes a top conductive electrode, a bottom conductive electrode and a dielectric substrate or a functional substrate that would generate electrical signal response due to a specific input such as motion, light, chemical, or temperature. The present sensing film apparatus could be configured to have the top and bottom conductive electrodes which are partially or fully embedded onto the surfaces of the dielectric and/or functional substrates.
    Type: Application
    Filed: September 29, 2018
    Publication date: January 31, 2019
    Inventors: Chung Pui CHAN, Wing Hong CHOI, Lai Fan LAI, Kwok Keung Paul HO, Chien Chung
  • Patent number: 10103282
    Abstract: The present invention provides transparent semiconducting films for constructing a translucent electrode that possess a high transparency and low sheet resistance. Further, the transparent semiconducting films have a high light diffusion property, which is capable to be a translucent front/back electrode in a light-emitting device for improving the light emission efficiency and a front/intermediate/back electrode in a multi-junction solar cell for improving the light trapping effect. Related fabrication method and how they are applied in different fields are also provided in the present invention.
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: October 16, 2018
    Assignee: Nano and Advanced Materials Institute Limited
    Inventors: Chung Pui Chan, Wing Hong Choi, Kwok Keung Paul Ho
  • Publication number: 20180291498
    Abstract: The present invention provides a transparent conductive thin film which is flexible for suiting substantially all kinds of electronic and optoelectronic devices or display panel. The present conductive thin film includes at least one transparent substrate, a deformable layer and a conductive network pattern having a high aspect ratio such that at least one surface of the conductive network being exposed out of the deformable layer or the transparent substrate for contacting with an external structure while a large proportion thereof stays firmly integrated into the substrate. The present invention also relates to methods of fabricating a transparent conductive thin film including the structural features of the transparent conductive thin film of the present invention. Various optimizations of the present methods are also provided in the present invention for facilitating large area thin film fabrication and large scale production.
    Type: Application
    Filed: July 12, 2017
    Publication date: October 11, 2018
    Inventors: Chung Pui Chan, Lai Fan Lai, Wing Hong Choi, Bin Zhang, Kwok Keung Paul Ho, Chien Chung, Chun Pong Lee
  • Publication number: 20180248178
    Abstract: Disclosed are composite anodes for a lithium ion battery containing carbon material core particles and a coating layer of LTO particles over the carbon material core particles, the coating layer of LTO particles at least partially covering the carbon material core particles. Also disclosed are anodes for a lithium ion battery containing activating treated surface modified graphite particles, wherein at least one of an inorganic acid or an oxidizing agent is used to treat and modify the surface of the graphite particles.
    Type: Application
    Filed: February 24, 2017
    Publication date: August 30, 2018
    Inventors: Chung Pui Chan, Yeming Xu, Chao Cai, Kowk Keung Paul Ho
  • Publication number: 20180083161
    Abstract: The present invention provides transparent semiconducting films for constructing a translucent electrode that possess a high transparency and low sheet resistance. Further, the transparent semiconducting films have a high light diffusion property, which is capable to be a translucent front/back electrode in a light-emitting device for improving the light emission efficiency and a front/intermediate/back electrode in a multi-junction solar cell for improving the light trapping effect. Related fabrication method and how they are applied in different fields are also provided in the present invention.
    Type: Application
    Filed: September 13, 2017
    Publication date: March 22, 2018
    Inventors: Chung Pui CHAN, Wing Hong CHOI, Kwok Keung Paul HO
  • Patent number: 9464271
    Abstract: A method has been developed to produce stable cell-matrix microspheres with up to 100% encapsulation efficiency and high cell viability, using matrix or biomaterial systems with poor shape and mechanical stability for applications including cell therapeutics via microinjection or surgical implantation, 3D culture for in vitro expansion without repeated cell splitting using enzymatic digestion or mechanical dissociation and for enhanced production of therapeutic biomolecules, and in vitro modeling for morphogenesis studies. The modified droplet generation method is simple and scalable and enables the production of cell-matrix microspheres when the matrix or biomaterial system used has low concentration, with slow phase transition, with poor shape and mechanical stability.
    Type: Grant
    Filed: February 18, 2014
    Date of Patent: October 11, 2016
    Assignee: Versitech Limited
    Inventors: Barbara Pui Chan, Godfrey Chi-Fung Chan, Hoi Ling Wong, Pik To Cheung, Song-Eng Kathryn Cheah, Danny Chan
  • Patent number: 9307968
    Abstract: The subject invention pertains to medical apparatuses and methods for reducing or preventing leakage of injected therapeutic agents (including liquid-containing substances, cells) into a solid or hollow tissue/organ after puncturing.
    Type: Grant
    Filed: June 13, 2013
    Date of Patent: April 12, 2016
    Assignee: The University of Hong Kong
    Inventors: Barbara Pui Chan, Tsz Kit Chik, Tsz Hang Andrew Choy, Xuanyi Ma, K. M. C. Cheung
  • Patent number: 9096831
    Abstract: A method is provided to functionally select cells with enhanced characteristics relevant to cell engraftment, including both spontaneous migration and directional migration towards specific chemo-attractants. The cells are preferably undifferentiated cells, such as mesenchymal stem cells. The method involves entrapping or encapsulating the cells in a biomaterial barrier, optionally inducing cell migration, and selecting cells that migrated through the barrier. The cells selected by this method have better migratory activities and enhanced in vivo engraftment to injured tissues when they are supplemented systemically.
    Type: Grant
    Filed: June 14, 2011
    Date of Patent: August 4, 2015
    Assignee: Versitech Limited
    Inventors: Barbara Pui Chan, Hoi Ling Wong, Mei Yi Wong, Godfrey Chi-Fung Chan, Zhen Fan Yang