Patents by Inventor Cheng-cheung Chen

Cheng-cheung Chen 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).

  • Collection and test device for rapid test
    Patent number: 12144493
    Abstract: A collection and test device for a rapid test is provided. The device comprises a test fluid accommodation part having a test fluid accommodation space, a test paper accommodation part having a test paper accommodation space, and a collection probe having a channel for the test fluid to flow out from the collection probe. The two ends of the test paper accommodation part are respectively connected to the test fluid accommodation part and the collection probe, and the test paper accommodation space communicates with the channel of the collection probe. The test fluid accommodation space and the test paper accommodation space are separated from each other by a temporary barrier. The temporary barrier can be manually removed or broken to make the test fluid accommodation space communicate with the test paper accommodation space. The device of the present invention can provide the test results conveniently and rapidly.
    Type: Grant
    Filed: March 23, 2022
    Date of Patent: November 19, 2024
    Assignee: NATIONAL DEFENSE MEDICAL CENTER
    Inventors: Jia-En Chen, Juin-Hong Cherng, Yuan-Hao Chen, Cheng-Che Liu, Cheng-Cheung Chen, Yu-Min Tsai, Chin-Hsieh Yi
  • SERS substrate fabrication method and SERS detection method
    Patent number: 11733166
    Abstract: A fabrication method of a SERS substrate includes (a) preparing a hydrophilic membrane; (b) dipping the hydrophilic membrane in an alcohol; (c) immersing the hydrophilic membrane in a chloride ion aqueous solution; and (d) depositing Ag or Au nanoparticles on the hydrophilic membrane by suction filtration to form the SERS substrate. The hydrophilic membrane includes 10˜20 wt % PVDF, PTFE, PC, PES, nylon, or mixtures thereof, 10˜20 wt % PVP, and 0.2˜1.6 wt % PMMA, PHEMA, or mixtures thereof.
    Type: Grant
    Filed: May 13, 2022
    Date of Patent: August 22, 2023
    Assignee: NATIONAL DEFENSE MEDICAL CENTER
    Inventors: Jenn-Jong Young, Cheng-Cheung Chen, Chia-Ying Chin, Xin-An Chen, Hui-Ju Yen, Ying-Chuan Chen, Hsin-Lun Hsieh
  • SERS SUBSTRATE FABRICATION METHOD AND SERS DETECTION METHOD
    Publication number: 20220390376
    Abstract: A fabrication method of a SERS substrate includes (a) preparing a hydrophilic membrane; (b) dipping the hydrophilic membrane in an alcohol; (c) immersing the hydrophilic membrane in a chloride ion aqueous solution; and (d) depositing Ag or Au nanoparticles on the hydrophilic membrane by suction filtration to form the SERS substrate. The hydrophilic membrane includes 10˜20 wt % PVDF, PTFE, PC, PES, nylon, or mixtures thereof, 10˜20 wt % PVP, and 0.2˜1.6 wt % PMMA, PHEMA, or mixtures thereof.
    Type: Application
    Filed: May 13, 2022
    Publication date: December 8, 2022
    Inventors: Jenn-Jong Young, Cheng-Cheung Chen, Chia-Ying Chin, Xin-An Chen, Hui-Ju Yen, Ying-Chuan Chen, Hsin-Lun Hsieh
  • COLLECTION AND TEST DEVICE FOR RAPID TEST
    Publication number: 20220304662
    Abstract: A collection and test device for a rapid test is provided. The device comprises a test fluid accommodation part having a test fluid accommodation space, a test paper accommodation part having a test paper accommodation space, and a collection probe having a channel for the test fluid to flow out from the collection probe. The two ends of the test paper accommodation part are respectively connected to the test fluid accommodation part and the collection probe, and the test paper accommodation space communicates with the channel of the collection probe. The test fluid accommodation space and the test paper accommodation space are separated from each other by a temporary barrier. The temporary barrier can be manually removed or broken to make the test fluid accommodation space communicate with the test paper accommodation space. The device of the present invention can provide the test results conveniently and rapidly.
    Type: Application
    Filed: March 23, 2022
    Publication date: September 29, 2022
    Inventors: Jia-En CHEN, Juin-Hong CHERNG, Yuan-Hao CHEN, Cheng-Che LIU, Cheng-Cheung CHEN, Yu-Min TSAI, Chin-Hsieh YI
  • Fucoidan-quaternized chitosan nanoparticles and application thereof
    Patent number: 11135289
    Abstract: The present invention relates to fucoidan-quaternized chitosan nanoparticles, an immunogenic composition containing the fucoidan-quatemized chitosan nanoparticles, and a method of delivering an agent to a cell by the fucoidan-quaternized chitosan nanoparticles.
    Type: Grant
    Filed: April 24, 2019
    Date of Patent: October 5, 2021
    Assignee: NATIONAL DEFENSE MEDICAL CENTER
    Inventors: Jenn-jong Young, Chuan-Chang Chuang, Meng-Hung Tsai, Huey-Fen Shyu, Cheng-cheung Chen, Kuang-ming Cheng, Jyh-Hwa Kau, Hui-Ju Yen, Fwu-Long Mi
  • FUCOIDAN-QUATERNIZED CHITOSAN NANOPARTICLES AND APPLICATION THEREOF
    Publication number: 20200338191
    Abstract: The present invention relates to fucoidan-quaternized chitosan nanoparticles, an immunogenic composition containing the fucoidan-quatemized chitosan nanoparticles, and a method of delivering an agent to a cell by the fucoidan-quaternized chitosan nanoparticles.
    Type: Application
    Filed: April 24, 2019
    Publication date: October 29, 2020
    Inventors: Jenn-jong Young, Chuan-Chang Chuang, Meng-Hung Tsai, Huey-Fen Shyu, Cheng-cheung Chen, Kuang-ming Cheng, Jyh-Hwa Kau, Hui-Ju Yen