Patents by Inventor Paul Kwok

Paul Kwok 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: 20200027625
    Abstract: A self-assembled metal mesh transparent conductive film and the method of fabricating the same are provided in the present invention. Some key aspects of the present invention are as follows: 1) to control the opening size in self-assembled metal mesh transparent conductive film; 2) to tune the surface energy of substrate using surface treatment; 3) to improve transparency of metal mesh by low-temperature method such as chemical etching; 4) to increase the conductivity of metal mesh without high temperature annealing; and 5) to strengthen the metal mesh film by post-treatment. The transparent conductive film of the present invention can be formed on rigid or flexible substrates. The present method enables tuning the transparency and conductance of the metal mesh film through tuning the opening size of metal mesh, and is also cost-effective due to low process cost and high material utilization rate.
    Type: Application
    Filed: May 15, 2018
    Publication date: January 23, 2020
    Inventors: Yubin XIAO, Jianjun SONG, Paul Kwok Keung HO
  • Patent number: 10290432
    Abstract: To fabricate a perovskite solar cell (PSC), a printable carbon electrode is formed on an uppermost layer, either a perovskite layer or an interface layer thereon, of a partially-completed PSC. A carbon ink is first prepared by dispersing carbon materials in a mixture of a polymer binder and a solvent. Then the carbon ink is screen-printed on the uppermost layer to form a wet film thereon. The wet film is baked with a baking temperature not exceeding 100° C. to evaporate the solvent to form the carbon electrode. Advantageously, the wet film is pressed with a pressure during baking such that the carbon electrode becomes denser and yields a lower sheet resistance when compared to one formed without being pressed. Preferably the pressure is at least 16,000 Pa. Experimental results show that the percentage reduction of sheet resistance can reach 40%.
    Type: Grant
    Filed: February 13, 2018
    Date of Patent: May 14, 2019
    Assignee: Nano and Advanced Materials Institute Limited
    Inventors: Qian Li, Chao Cai, Qingdan Yang, Jia Li, Paul Kwok Keung Ho
  • Patent number: 9583711
    Abstract: The present invention relates to newly functionalized polythiophenes and the syntheses thereof. The present invention also demonstrates that the new polythiophenes and their derivatives are suitable for fabricating organic light emitting diodes (OLEDs), light emitting diodes (PLEDs), organic photovoltaic devices (OPVs) and conducting polymers for printed electronic devices.
    Type: Grant
    Filed: May 28, 2014
    Date of Patent: February 28, 2017
    Assignee: Nano and Advanced Materials Institute Limited
    Inventors: Paul Kwok Keung Ho, Wing Leung Wong
  • Patent number: 9497093
    Abstract: Various exemplary embodiments relate to a method for determining peer status in a pseudowire (PW) node, the method including: sending a first PW status request message to a peer node including a PW node local message ID, PW node remote message ID, and request flag; starting a first retry timer; starting a second retry timer when the first retry timer expires and no response to the first PW status request message is received; starting a first request timer when the second retry timer expires and no response to the first PW status request message is received; and starting a third retry timer when the first request timer expires and no response to the first PW status request message is received.
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: November 15, 2016
    Assignee: Alcatel Lucent
    Inventors: Matthew Bocci, Paul Kwok, Shafiq Pirbhai
  • Patent number: 9455900
    Abstract: Methods, system and apparatus for determining shortest path bridging (SPB) within a communications network.
    Type: Grant
    Filed: April 8, 2014
    Date of Patent: September 27, 2016
    Assignee: Alcatel Lucent
    Inventors: Senthil Sathappan, Paul Kwok, Donald W. Fedyk
  • Patent number: 9243340
    Abstract: The present invention describes a method of producing a p-type light-absorbing semiconductor copper zinc tin selenide/sulfide (Cu2(ZnxSn2-x)(SySe1-y)4) (abbreviated CZTS) with electrochemical deposition. It can be used in the production of solar cell when combined with an n-type inorganic or an organic semiconductor layer. The present method comprises a one-step or a sequence of depositions using electroplating to fabricate a low-cost and large-area CZTS solar cell, without using expensive and complicated deposition techniques or highly toxic and flammable chemicals in the production process. The present method significantly reduces the cost and energy requirement for production of solar cell.
    Type: Grant
    Filed: February 12, 2014
    Date of Patent: January 26, 2016
    Assignee: NANO AND ADVANCED MATERIALS INSTITUTE LIMITED
    Inventors: Kam Piu Ho, Paul Kwok Keung Ho, Man Wah Liu, Ranshi Wang, Wai Chun Luk, Wing Ho Choi, Fulin Zheng, Kwong Chau Kwok, Mei Mei Hsu, Ivan Ka Yu Lau
  • Patent number: 9160626
    Abstract: Various exemplary embodiments relate to an operational group in a network element of a communication network, where the operational group is associated with monitored objects and monitoring client objects such that the status of the operational group is a function of the operational status of the monitored objects or services. Monitoring client objects can monitor the status of the operational group such that the status of each of the monitoring client objects reflects the status of the operational group.
    Type: Grant
    Filed: January 9, 2012
    Date of Patent: October 13, 2015
    Assignee: Alcatel Lucent
    Inventors: Florin Balus, Paul Kwok, Vinod Prabhu
  • Patent number: 9049106
    Abstract: Providing gateway redundancy is disclosed. On each of a master and a standby gateway a single IP routing redundancy protocol instance is associated with a plurality of subscriber subnets. On each gateway, the respective single IP routing redundancy protocol instance is used to provide gateway redundancy for the plurality of subscriber subnets.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: June 2, 2015
    Assignee: Alcatel Lucent
    Inventors: Joseph M. Regan, Ron E. Haberman, Wenao Hu, Paul Kwok
  • Publication number: 20150085705
    Abstract: Various exemplary embodiments relate to a method for determining peer status in a pseudowire (PW) node, the method including: sending a first PW status request message to a peer node including a PW node local message ID, PW node remote message ID, and request flag; starting a first retry timer; starting a second retry timer when the first retry timer expires and no response to the first PW status request message is received; starting a first request timer when the second retry timer expires and no response to the first PW status request message is received; and starting a third retry timer when the first request timer expires and no response to the first PW status request message is received.
    Type: Application
    Filed: September 24, 2013
    Publication date: March 26, 2015
    Applicant: ALCATEL-LUCENT
    Inventors: Matthew BOCCI, Paul KWOK, Shafiq PIRBHAI
  • Publication number: 20140353552
    Abstract: The present invention relates to newly functionalized polythiophenes and the syntheses thereof. The present invention also demonstrates that the new polythiophenes and their derivatives are suitable for fabricating organic light emitting diodes (OLEDs), light emitting diodes (PLEDs), organic photovoltaic devices (OPVs) and conducting polymers for printed electronic devices.
    Type: Application
    Filed: May 28, 2014
    Publication date: December 4, 2014
    Applicant: NANO AND ADVANCED MATERIALS INSTITUTE LIMITED
    Inventors: Paul Kwok Keung HO, Wing Leung WONG
  • Publication number: 20140251435
    Abstract: The present invention describes a method of producing a p-type light-absorbing semiconductor copper zinc tin selenide/sulfide (Cu2(ZnxSn2-x)(SySe1-y)4) (abbreviated CZTS) with electrochemical deposition. It can be used in the production of solar cell when combined with an n-type inorganic or an organic semiconductor layer. The present method comprises a one-step or a sequence of depositions using electroplating to fabricate a low-cost and large-area CZTS solar cell, without using expensive and complicated deposition techniques or highly toxic and flammable chemicals in the production process. The present method significantly reduces the cost and energy requirement for production of solar cell.
    Type: Application
    Filed: February 12, 2014
    Publication date: September 11, 2014
    Applicant: Nano and Advanced Materials Institute Limited
    Inventors: Kam Piu HO, Paul Kwok Keung HO, Man Wah LIU, Ranshi WANG, Wai Chun LUK, Wing Ho CHOI, Fulin ZHENG, Kwong Chau KWOK, Mei Mei HSU, Ivan Ka Yu LAU
  • Publication number: 20140219105
    Abstract: Methods, system and apparatus for determining shortest path bridging (SPB) within a communications network.
    Type: Application
    Filed: April 8, 2014
    Publication date: August 7, 2014
    Applicant: Alcatel-Lucent USA Inc.
    Inventors: SENTHIL SATHAPPAN, Paul Kwok, Donald W. Fedyk
  • Patent number: 8751683
    Abstract: A technique for operating a network involves controlling the black-holing of traffic by selectively redirecting unicast traffic destined for a dual-homed customer equipment (CE) device from a first provider backbone bridge (PBB) provider edge (PE) device to a second PBB PE device in response to a service failure. Unicast traffic is selectively redirected from the first PBB PE device to the second PBB PE device for a time interval that is long enough to enable the customer source MAC address (CMAC)-to-backbone MAC address (BMAC) association of the second PBB PE device to be learned by other PBB PE devices.
    Type: Grant
    Filed: January 10, 2008
    Date of Patent: June 10, 2014
    Assignee: Alcatel Lucent
    Inventors: Florin Balus, Kendall William Harvey, Joe Regan, Paul Kwok
  • Publication number: 20140119173
    Abstract: Providing gateway redundancy is disclosed. On each of a master and a standby gateway a single IP routing redundancy protocol instance is associated with a plurality of subscriber subnets. On each gateway, the respective single IP routing redundancy protocol instance is used to provide gateway redundancy for the plurality of subscriber subnets.
    Type: Application
    Filed: December 23, 2013
    Publication date: May 1, 2014
    Applicant: Alcatel Lucent
    Inventors: Joseph M. Regan, Ron E. Haberman, Wenao Hu, Paul Kwok
  • Patent number: 8699327
    Abstract: Providing gateway redundancy is disclosed. On each of a master and a standby gateway a single IP routing redundancy protocol instance is associated with a plurality of subscriber subnets. On each gateway, the respective single IP routing redundancy protocol instance is used to provide gateway redundancy for the plurality of subscriber subnets.
    Type: Grant
    Filed: February 27, 2007
    Date of Patent: April 15, 2014
    Assignee: Alcatel Lucent
    Inventors: Joseph M. Regan, Ron E. Haberman, Wenao Hu, Paul Kwok
  • Patent number: 8693315
    Abstract: Methods, system and apparatus for determining shortest path bridging (SPB) of multicast frames within a communications network.
    Type: Grant
    Filed: September 13, 2011
    Date of Patent: April 8, 2014
    Assignee: Alcatel Lucent
    Inventors: Senthil Sathappan, Paul Kwok, Donald W. Fedyk
  • Publication number: 20130176867
    Abstract: Various exemplary embodiments relate to an operational group in a network element of a communication network, where the operational group is associated with monitored objects and monitoring client objects such that the status of the operational group is a function of the operational status of the monitored objects or services. Monitoring client objects can monitor the status of the operational group such that the status of each of the monitoring client objects reflects the status of the operational group.
    Type: Application
    Filed: January 9, 2012
    Publication date: July 11, 2013
    Inventors: Florin Balus, Paul Kwok, Vinod Prabhu
  • Patent number: D803709
    Type: Grant
    Filed: December 23, 2016
    Date of Patent: November 28, 2017
    Assignees: Anhui Huami Information Technology Co., Ltd., Huami Inc.
    Inventors: Ines Le Bihan, Pengtao Yu, Paul Kwok, Lian Zhang, Xiaoyan Sun
  • Patent number: D804335
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: December 5, 2017
    Assignees: Anhui Huami Information Technology Co., Ltd., Huami Inc.
    Inventors: Ines Le Bihan, Pengtao Yu, Paul Kwok, Lian Zhang, Xiaoyan Sun
  • Patent number: D806589
    Type: Grant
    Filed: December 23, 2016
    Date of Patent: January 2, 2018
    Assignees: Anhui Huami Information Technology Co., Ltd., Huami Inc.
    Inventors: Ines Le Bihan, Pengtao Yu, Paul Kwok, Lian Zhang, Xiaoyan Sun