Patents by Inventor HANTANG QIN

HANTANG QIN 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).

  • METAL NANOPARTICLE INK
    Publication number: 20240034895
    Abstract: An ink includes metal nanoparticles stabilized with cellulose or a cellulose derivative. A method of forming an electrically conductive pathway includes printing the ink on a substrate, and sintering the printed ink, to form the electrically conductive pathway on the substrate.
    Type: Application
    Filed: July 28, 2023
    Publication date: February 1, 2024
    Inventors: Fei Liu et al., Tyler Kirscht, Matthew Marander, Liangkui Jiang, Hantang Qin, Shan Jiang
  • Cellulose derivative based biodegradable support structures for 3D printing
    Patent number: 11866591
    Abstract: The present disclosure relates to support structures for three dimensional (3D) printing, methods of preparing the support structures, and methods of using the support structures. In particular, the support structures comprise a hydrogel comprised of a cellulose derivative. Preferably, the support structures are biodegradable and easily removed without generating toxic waste.
    Type: Grant
    Filed: April 12, 2021
    Date of Patent: January 9, 2024
    Assignee: Iowa State University Research Foundation, Inc.
    Inventors: Xiaolei Shi, Hantang Qin
  • 3D PRINTED, FREEZE-DRIED HYDROGELS AND METHODS OF MAKING AND USING THE SAME
    Publication number: 20230084440
    Abstract: The present disclosure relates to food grade hydrogels containing probiotics and methods of their preparation. More particularly, this disclosure describes 3D printable edible hydrogels, freeze-dried 3D printed edible hydrogels, systems for their printing, as well as, methods of preparing food grade 3D printed, freeze dried hydrogel compositions. Beneficially, the 3D printed, freeze-dried hydrogel compositions are storage stable.
    Type: Application
    Filed: July 18, 2022
    Publication date: March 16, 2023
    Inventors: XIAOLEI SHI, STEPHANIE CLARK, HANTANG QIN, CHIH-CHUN KUO
  • CELLULOSE DERIVATIVE BASED BIODEGRADABLE SUPPORT STRUCTURES FOR 3D PRINTING
    Publication number: 20210317328
    Abstract: The present disclosure relates to support structures for three dimensional (3D) printing, methods of preparing the support structures, and methods of using the support structures. In particular, the support structures comprise a hydrogel comprised of a cellulose derivative. Preferably, the support structures are biodegradable and easily removed without generating toxic waste.
    Type: Application
    Filed: April 12, 2021
    Publication date: October 14, 2021
    Inventors: XIAOLEI SHI, HANTANG QIN