Patents by Inventor Kwan Li

Kwan Li 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: 12278327
    Abstract: Disclosed is a densified cell assembly and methods for preparing the same. In one embodiment, an isostatic press is applied to a bag which contains a plate and two elastic substrates enveloping a cell pouch, wherein one or more tabs are extended from the cell pouch, wherein the cell pouch accommodates a cell stack comprising one or more electrode layers and one or more electrolyte layers. In one embodiment, the tabs are not damaged or disconnected from the cell pouch due to compression.
    Type: Grant
    Filed: May 13, 2024
    Date of Patent: April 15, 2025
    Assignee: Factorial Inc.
    Inventor: Kwan Li
  • Publication number: 20250112260
    Abstract: Disclosed is a densified cell assembly and methods for preparing the same. In one embodiment, an isostatic press is applied to a bag which contains a plate and two elastic substrates enveloping a cell pouch, wherein one or more tabs are extended from the cell pouch, wherein the cell pouch accommodates a cell stack comprising one or more electrode layers and one or more electrolyte layers. In one embodiment, the tabs are not damaged or disconnected from the cell pouch due to compression.
    Type: Application
    Filed: May 13, 2024
    Publication date: April 3, 2025
    Applicant: Factorial Inc.
    Inventor: Kwan Li
  • Publication number: 20240291028
    Abstract: A cell assembly has a plurality of first electrodes, a plurality of second electrodes and a plurality of solid electrolyte layers. The solid electrolyte layers have a protrusion in at least one of the solid electrolyte layers. The protrusion is aligned with a first electrode tab of one of the first electrodes. The folding of the first electrode tabs causes the protrusions to be positioned to separate the first electrode tabs from the second electrodes, thus preventing short circuit between the first electrode tabs and second electrodes. In one aspect, the disclosure provides an all solid-state battery comprising one or more anodes, one or more cathodes and one or more solid electrolyte layers with a protrusion. Also disclosed is a method for preparing same.
    Type: Application
    Filed: February 23, 2024
    Publication date: August 29, 2024
    Applicant: Factorial Inc.
    Inventors: Kwan Li, Hosang Park
  • Patent number: 11770970
    Abstract: A series of thermally stable and highly luminescent cyclometalated tetradentate ligand-containing gold(III) compounds was designed and synthesized. The cyclometalated tetradentate ligand-containing gold(III) compounds can be used as light-emitting material for fabrication of light-emitting devices. The cyclometalated tetradentate ligand-containing gold(III) compounds can be deposited as a layer or a component of a layer using a solution-processing technique or a vacuum deposition process. The cyclometalated tetradentate ligand-containing gold(III) compounds are robust and can provide electroluminescence with high efficiency and brightness. More importantly, the vacuum-deposited OLEDs demonstrate long operational stabilities with half-lifetime of over 29,700 hours at 100 cd m?2.
    Type: Grant
    Filed: November 10, 2022
    Date of Patent: September 26, 2023
    Assignee: THE UNIVERSITY OF HONG KONG
    Inventors: Vivian Wing-Wah Yam, Man-Chung Tang, Lok-Kwan Li, Mei-Yee Chan
  • Publication number: 20230112122
    Abstract: A series of thermally stable and highly luminescent cyclometalated tetradentate ligand-containing gold(III) compounds was designed and synthesized. The cyclometalated tetradentate ligand-containing gold(III) compounds can be used as light-emitting material for fabrication of light-emitting devices. The cyclometalated tetradentate ligand-containing gold(III) compounds can be deposited as a layer or a component of a layer using a solution-processing technique or a vacuum deposition process. The cyclometalated tetradentate ligand-containing gold(III) compounds are robust and can provide electroluminescence with high efficiency and brightness. More importantly, the vacuum-deposited OLEDs demonstrate long operational stabilities with half-lifetime of over 29,700 hours at 100 cd m?2.
    Type: Application
    Filed: November 10, 2022
    Publication date: April 13, 2023
    Inventors: Vivian Wing-Wah YAM, Man-Chung TANG, Lok-Kwan LI, Mei-Yee CHAN
  • Patent number: 11532795
    Abstract: A series of thermally stable and highly luminescent cyclometalated tetradentate ligand-containing gold(III) compounds was designed and synthesized. The cyclometalated tetradentate ligand-containing gold(III) compounds can be used as light-emitting material for fabrication of light-emitting devices. The cyclometalated tetradentate ligand-containing gold(III) compounds can be deposited as a layer or a component of a layer using a solution-processing technique or a vacuum deposition process. The cyclometalated tetradentate ligand-containing gold(III) compounds are robust and can provide electroluminescence with high efficiency and brightness. More importantly, the vacuum-deposited OLEDs demonstrate long operational stabilities with half-lifetime of over 29,700 hours at 100 cd m?2.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: December 20, 2022
    Assignee: THE UNIVERSITY OF HONG KONG
    Inventors: Vivian Wing-Wah Yam, Man-Chung Tang, Lok-Kwan Li, Mei-Yee Chan
  • Patent number: 11362287
    Abstract: A novel class of gold(III) compounds containing cyclometalated tridentate ligand and one aryl auxiliary ligand, both coordinated to a gold(III) metal center. (a) X is nitrogen or carbon; (b) Y and Z are independently nitrogen or carbon; (c) A is cyclic structure (derivative) of pyridine, quinoline, isoquinoline or phenyl group; (d) B and C are independently cyclic structures (derivatives) of pyridine, quinoline, isoquinoline or phenyl groups; (e) B and C can be identical or non-identical, with the proviso that both B and C are not 4-tert-butylbenzene; (f) R? is a substituted carbon, nitrogen, oxygen or sulfur donor ligand attached to the gold atom; (g) n is zero, a positive integer or a negative integer. wherein R? is selected from, but not limited to, aryl, substituted aryl, heteroaryl, substituted heteroaryl, heterocyclic aryl and substituted heterocyclic aryl, alkoxy, aryloxy, amide, thiolate, sulfonate, phosphide, fluoride, chloride, bromide, iodide, cyanate, thiocyanate or cyanide.
    Type: Grant
    Filed: October 3, 2017
    Date of Patent: June 14, 2022
    Assignee: THE UNIVERSITY OF HONG KONG
    Inventors: Vivian Wing-Wah Yam, Man Chung Tang, Mei Yee Chan, Chin Ho Lee, Lok Kwan Li
  • Publication number: 20200203637
    Abstract: A series of thermally stable and highly luminescent cyclometalated tetradentate ligand-containing gold(III) compounds was designed and synthesized. The cyclometalated tetradentate ligand-containing gold(III) compounds can be used as light-emitting material for fabrication of light-emitting devices. The cyclometalated tetradentate ligand-containing gold(III) compounds can be deposited as a layer or a component of a layer using a solution-processing technique or a vacuum deposition process. The cyclometalated tetradentate ligand-containing gold(III) compounds are robust and can provide electroluminescence with high efficiency and brightness. More importantly, the vacuum-deposited OLEDs demonstrate long operational stabilities with half-lifetime of over 29,700 hours at 100 cd m?2.
    Type: Application
    Filed: December 20, 2019
    Publication date: June 25, 2020
    Inventors: Vivian Wing-Wah YAM, Man-Chung TANG, Lok-Kwan LI, Mei-Yee CHAN
  • Publication number: 20200044167
    Abstract: A novel class of gold(III) compounds containing cyclometalated tridentate ligand and one aryl auxiliary ligand, both coordinated to a gold(III) metal center. (a) X is nitrogen or carbon; (b) Y and Z are independently nitrogen or carbon; (c) A is cyclic structure (derivative) of pyridine, quinoline, isoquinoline or phenyl group; (d) B and C are independently cyclic structures (derivatives) of pyridine, quinoline, isoquinoline or phenyl groups; (e) B and C can be identical or non-identical, with the proviso that both B and C are not 4-tert-butylbenzene; (f) R? is a substituted carbon, nitrogen, oxygen or sulfur donor ligand attached to the gold atom; (g) n is zero, a positive integer or a negative integer. wherein R? is selected from, but not limited to, aryl, substituted aryl, heteroaryl, substituted heteroaryl, heterocyclic aryl and substituted heterocyclic aryl, alkoxy, aryloxy, amide, thiolate, sulfonate, phosphide, fluoride, chloride, bromide, iodide, cyanate, thiocyanate or cyanide.
    Type: Application
    Filed: October 3, 2017
    Publication date: February 6, 2020
    Inventors: Vivian Wing-Wah Yam, Man Chung Tang, Mei Yee Chan, Chin Ho Lee, Lok Kwan Li
  • Publication number: 20090247495
    Abstract: The present invention relates to uses of cucurbitacins and compositions comprising cucurbitacin B. The present invention also relates to methods for preventing or treating various diseases and disorders by administering to a subject in need thereof cucurbitacin B. The invention also encompass methods of developing a therapeutic that comprises a cucurbitacin using the signaling molecules in the Ras-Raf-Mek-Elk-STAT3 pathway.
    Type: Application
    Filed: December 14, 2008
    Publication date: October 1, 2009
    Inventors: Wei Dong Xie, Kwan Li, Edgar Shiu Lam Liu, Kee Hung Chu
  • Publication number: 20080234244
    Abstract: The present invention relates to uses of cucurbitacins and compositions comprising cucurbitacin B. The present invention also relates to methods for preventing or treating various diseases and disorders by administering to a subject in need thereof cucurbitacin B. The invention also encompass methods of developing a therapeutic that comprises a cucurbitacin using the signaling molecules in the Ras-Raf-Mek-Elk-STAT3 pathway.
    Type: Application
    Filed: March 19, 2008
    Publication date: September 25, 2008
    Inventors: Wei Dong Xie, Kwan Li, Edgar Shiu Lam Liu, Kee Hung Chu