Patents by Inventor Kwok-Keung Wong

Kwok-Keung Wong 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: 20220291120
    Abstract: A method for determining a quality condition of an agricultural product comprises: receiving a received light at a light detector, the received light comprising reflected, scattered, refracted, and/or deflected light from the agricultural product; transmitting the received light to a spectrometer; producing agricultural product (AP) spectral data of the received light using the spectrometer; with a computer in electrical communication with the spectrometer, comparing the AP spectral data to reference spectral data to determine whether the agricultural product has the quality condition, the reference spectral data corresponding to known quality conditions of the agricultural product; and with the computer, generating an output signal corresponding to the quality condition of the agricultural product.
    Type: Application
    Filed: March 4, 2022
    Publication date: September 15, 2022
    Inventor: Kwok-Keung Wong
  • Patent number: 5189550
    Abstract: Thin film coatings for solid state storage batteries and electrochromic energy conservation devices are now formed on low temperature glass and plastic substrates by an ion-assisted RF deposition process. The attachment of such coated glass or plastic substrates to existing windows in situ allows ordinary plate glass windows in homes, office buildings and factories to be converted to "smart-windows" resulting in a substantial savings in heating and air conditioning costs.
    Type: Grant
    Filed: December 13, 1991
    Date of Patent: February 23, 1993
    Assignee: Tufts University
    Inventors: Ronald B. Goldner, Floyd O. Arntz, Bertrand Morel, Terry E. Haas, Kwok-Keung Wong
  • Patent number: 5171413
    Abstract: A multilayer, thin film solid state ionic device usable as an electrochromic window and/or as a rechargeable battery and a method for its manufacture. In one embodiment, the device comprises a transparent substrate and a thin film, five layered coating, the coating being deposited onto the substrate. The device is made by depositing a first layer of indium tin oxide onto the substrate, depositing a second layer of tungsten trioxide onto the first layer, inserting a quantity of lithium ions into the second layer so as to form a lithium-enriched second layer, depositing a third layer of lithium niobate onto the lithium-enriched second layer, sputter depositing a fourth layer of LiCoO.sub.
    Type: Grant
    Filed: September 16, 1991
    Date of Patent: December 15, 1992
    Assignee: Tufts University
    Inventors: Floyd O. Arntz, Ronald B. Goldner, Terry E. Haas, Guang Wei, Kwok-Keung Wong
  • Patent number: 5133594
    Abstract: Ion blocking layers are interposed between the outer electrodes and the active layers in a five-layer electrochromic device. The ion-blocking layers are optically transparent and electronically conductive to provide for electron transport while blocking the transport of ions between the active layers and the outer electrode layers.
    Type: Grant
    Filed: July 19, 1990
    Date of Patent: July 28, 1992
    Assignee: Tufts University
    Inventors: Terry Haas, Ronald Goldner, Linas Jauniskis, Floyd Arntz, Kwok-Keung Wong, Eugene Sullivan
  • Patent number: 5051274
    Abstract: Thin film coatings for solid state storage batteries and electrochromic energy conservation devices are now formed on low temperature glass and plastic substrates by an ion-assisted RF deposition process. The attachment of such coated glass or plastic substrates to existing windows in situ allows ordinary plate glass windows in homes, office buildings and factories to be converted to "smart-windows" resulting in a substantial savings in heating and air conditioning costs.
    Type: Grant
    Filed: September 11, 1989
    Date of Patent: September 24, 1991
    Assignee: Tufts University
    Inventors: Ronald B. Goldner, Floyd O. Arntz, Bertrand Morel, Terry E. Haas, Kwok-Keung Wong
  • Patent number: 4876628
    Abstract: Durable thin film ion conducting coatings are formed on a transparent glass substrate by the controlled deposition of the mixed oxides of lithium:tantalum or lithium:niobium. The coatings provide durable ion transport sources for thin film solid state storage batteries and electrochromic energy conservation devices.
    Type: Grant
    Filed: February 21, 1989
    Date of Patent: October 24, 1989
    Assignee: Tufts University
    Inventors: Ronald B. Goldner, Terry Haas, Kwok-Keung Wong, George Seward
  • Patent number: 4832463
    Abstract: Durable thin film ion conducting coatings are formed on a transparent glass substrate by the controlled deposition of the mixed oxides of lithium:tantalum or lithium:niobium. The coatings provide durable ion transport sources for thin film solid state storage batteries and electrochromic energy conservation devices.
    Type: Grant
    Filed: September 8, 1987
    Date of Patent: May 23, 1989
    Assignee: Tufts University
    Inventors: Ronald B. Goldner, Terry Haas, Kwok-Keung Wong, George Seward