Patents by Inventor Ching-Ta Chang

Ching-Ta 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).

  • Composite solid base catalyst, manufacturing method thereof and manufacturing method of glycidol
    Patent number: 11998894
    Abstract: A composite solid base catalyst, a manufacturing method thereof and a manufacturing method of glycidol are provided. The composite solid base catalyst includes an aluminum carrier and a plurality of calcium particles. The plurality of calcium particles are supported by the aluminum carrier. Beta basic sites of the composite solid base catalyst are 0.58 mmol/g-3.89 mmol/g.
    Type: Grant
    Filed: June 14, 2022
    Date of Patent: June 4, 2024
    Assignees: NATIONAL TSING HUA UNIVERSITY, Chang Chun Plastics Co., Ltd., Chang Chun Petrochemical Co., LTD., DAIREN CHEMICAL CORP.
    Inventors: De-Hao Tsai, Yung-Tin Pan, Che-Ming Yang, Ching-Yuan Chang, Ding-Huei Tsai, Chien-Fu Huang, Yi-Ta Tsai
  • Baffle device
    Publication number: 20030217810
    Abstract: A baffle device applied to a reaction room for isolating a specific matter is provided. The baffle device includes a main body, a first collecting assemble disposed around the main body and having plural first outlets and plural first collecting strips disposed on the plural first outlets for collecting the specific matter, and a second collecting assembly parallel to the first collecting assembly and having plural second outlets and plural second collecting strips disposed on the specific matter, wherein the first collecting strips and the second collecting strips are mutually arranged alternately.
    Type: Application
    Filed: April 1, 2003
    Publication date: November 27, 2003
    Applicant: Winbond Electronic Corp.
    Inventors: Fu-sheng Chen, Chi-Lu Li, Ching-Ta Chang