Patents by Inventor Nelson Lik Ching LEUNG

Nelson Lik Ching LEUNG 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).

  • AIE-active chemo sensors for amine detection and related food-safety monitoring
    Patent number: 11332449
    Abstract: AIE-active chemosensors, according to the present teachings, exhibit UV-vis absorption change and become non-luminescent upon protonation. Upon deprotonation, the chemosensors revert to their original absorption and emission. This deprotonation process can be triggered in the presence of amines, and specifically, biogenic amines. The chemosensors can detect amine species, e.g., biogenic amines produced during food fermentation, quickly and with high sensitivity. Further, due to the AIE nature of the compounds, the chemosensors can be loaded onto a physical support and sealed inside a food package to monitor food spoilage.
    Type: Grant
    Filed: May 16, 2018
    Date of Patent: May 17, 2022
    Assignee: THE HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Benzhong Tang, Parvej Alam, Nelson Lik Ching Leung
  • Organic long persistence luminescence compositions
    Patent number: 11034709
    Abstract: Provided herein are organic long persistent luminescence compositions and methods of use and preparation thereof and articles comprising the same.
    Type: Grant
    Filed: May 22, 2020
    Date of Patent: June 15, 2021
    Assignee: The Hong Kong University of Science and Technology
    Inventors: Benzhong Tang, Parvej Alam, Nelson Lik Ching Leung
  • Organic Long Persistence Luminescence Compositions
    Publication number: 20200377534
    Abstract: Provided herein are organic long persistent luminescence compositions and methods of use and preparation thereof and articles comprising the same.
    Type: Application
    Filed: May 22, 2020
    Publication date: December 3, 2020
    Inventors: Benzhong TANG, Parvej ALAM, Nelson Lik Ching LEUNG
  • AIE-ACTIVE CHEMO SENSORS FOR AMINE DETECTION AND RELATED FOOD-SAFETY MONITORING
    Publication number: 20200062718
    Abstract: AIE-active chemosensors, according to the present teachings, exhibit UV-vis absorption change and become non-luminescent upon protonation. Upon deprotonation, the chemosensors revert to their original absorption and emission. This deprotonation process can be triggered in the presence of amines, and specifically, biogenic amines. The chemosensors can detect amine species, e.g., biogenic amines produced during food fermentation, quickly and with high sensitivity. Further, due to the AIE nature of the compounds, the chemosensors can be loaded onto a physical support and sealed inside a food package to monitor food spoilage.
    Type: Application
    Filed: May 16, 2018
    Publication date: February 27, 2020
    Inventors: Benzhong TANG, Parvej ALAM, Nelson Lik Ching LEUNG