Patents by Inventor Kezi Cheng

Kezi Cheng 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: 11911996
    Abstract: Methods and apparatus for modulating light using a tunable light modulation device. The tunable light modulation devices comprises an elastomer structure including at least one elastomer layer, a compliant electrode network of conducting fibers arranged on a first surface of the at least one elastomer layer, a patterned electric conductor arranged on a second surface of the at least one elastomer layer opposite the first surface. The patterned electric conductor includes a plurality of individually-addressable sections, and the compliant electrode network is configured to compress the at least one elastomer layer in the presence of an electric field between the compliant electrode network and one or more of the individually-addressable sections of the patterned electric conductor to produce a voltage-dependent roughening of the at least one elastomer layer.
    Type: Grant
    Filed: January 29, 2019
    Date of Patent: February 27, 2024
    Assignees: President and Fellows of Harvard College, Cardinal CG Company
    Inventors: Kezi Cheng, Aftab Hussain, Keith Burrows, David Clarke
  • Publication number: 20230183919
    Abstract: Coated articles include a substrate and a periodic mesoporous organosilica layer adhered to a surface of the substrate. The coated articles may further include a secondary silane layer covalently attached the periodic mesoporous organosilica layer. Depending on the compositions of the layers, the combination of the periodic mesoporous organosilica layer and the secondary silane layer renders the surface of the substrate superhydrophobic or omniphobic. Methods for coating a surface of a substrate include contacting the surface with a mixture of a hydrolyzed organosilane and a poloxamer and curing the mixture on the surface to form a PMO-coated substrate. The methods may further include contacting the PMO-coated article with a secondary silane coating solution of one or more silanes, then curing the secondary silane coating solution to form a dual-coated article comprising a secondary alkylsilane layer covalently attached to the periodic mesoporous organosilica layer on the surface of the substrate.
    Type: Application
    Filed: April 29, 2021
    Publication date: June 15, 2023
    Inventors: Lauren M. Ziemba, William S. Barney, Kezi Cheng, Michael J. Jakubowski, John F. Martin, Bradford A. Pindzola, John R. Powell
  • Publication number: 20210047882
    Abstract: Methods and apparatus for modulating light using a tunable light modulation device. The tunable light modulation devices comprises an elastomer structure including at least one elastomer layer, a compliant electrode network of conducting fibers arranged on a first surface of the at least one elastomer layer, a patterned electric conductor arranged on a second surface of the at least one elastomer layer opposite the first surface. The patterned electric conductor includes a plurality of individually-addressable sections, and the compliant electrode network is configured to compress the at least one elastomer layer in the presence of an electric field between the compliant electrode network and one or more of the individually-addressable sections of the patterned electric conductor to produce a voltage-dependent roughening of the at least one elastomer layer.
    Type: Application
    Filed: January 29, 2019
    Publication date: February 18, 2021
    Applicants: President and Fellows of Harvard College, Cardinal CG Company
    Inventors: Kezi Cheng, Aftab Hussain, Keith Burrows, David Clarke