Patents by Inventor YIU WEN CHANG

YIU WEN CHANG 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: 20240083648
    Abstract: Embodiments of the invention overcome the shortcomings of prior technologies by infusing nanocellulose in a fibrillated form to enhance the properties of cellulose pulp. These properties may include, for example, the mechanical and barrier properties, i.e., tensile strength, liquid, and gas impermeability such as oxygen, carbon dioxide, and oil, can be improved substantially. Another embodiment of the invention further provide a fibrillated cellulose composite material that include a blend of fibrillated cellulose and polymers to create improved properties over cellulose-based materials. The composite material further may be generally free of chemical additives to enhance the above properties.
    Type: Application
    Filed: February 1, 2022
    Publication date: March 14, 2024
    Applicant: Ecoinno (H.K.) Limited
    Inventors: George Dah Ren CHEN, Yiu Wen CHANG
  • Publication number: 20230272579
    Abstract: Embodiments of the invention overcome the shortcomings of prior technologies by infusing nanocellulose in a fibrillated form to enhance the properties of cellulose pulp. These properties may include, for example, the mechanical and barrier properties, i.e., tensile strength, liquid, and gas impermeability such as oxygen, carbon dioxide, and oil, can be improved substantially. Another embodiment of the invention further provide a fibrillated cellulose composite material that include properties of being a strength-enhancing agent, an oligomer, carboxylic acid, plasticizer, an antimicrobial agent, water repellant, oil repellant, and/or a transparent composite.
    Type: Application
    Filed: August 9, 2021
    Publication date: August 31, 2023
    Inventors: George Dah Ren CHEN, Yiu Wen CHANG
  • Publication number: 20230183924
    Abstract: Embodiments of the invention overcome the shortcomings of prior technologies by infusing nanocellulose in a fibrillated form to enhance the properties of cellulose pulp. These properties may include, for example, the mechanical and barrier properties, i.e., tensile strength, liquid, and gas impermeability such as oxygen, carbon dioxide, and oil, may be improved substantially. Another embodiment of the invention further provide a fibrillated cellulose composite material that include properties of being a strength-enhancing agent, an oligomer, carboxylic acid, plasticizer, an antimicrobial agent, water repellant, and/or a transparent composite.
    Type: Application
    Filed: May 4, 2021
    Publication date: June 15, 2023
    Inventors: YIU WEN CHANG, GEORGE DAH REN CHEN