Patents by Inventor Chao-Hung Zeng

Chao-Hung Zeng 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).

  • Apparatus erasing blackboard through areas
    Patent number: 8375505
    Abstract: The present invention wipes a writing board through areas. A teacher can wipe an area of a blackboard while writing on another area. Thus, a writing board can be flexibly used with convenience obtained and time saved.
    Type: Grant
    Filed: January 7, 2010
    Date of Patent: February 19, 2013
    Assignee: National Central University
    Inventors: Shu-San Hsiau, Chi-Hsin Ho, Peng-Shin Lee, Po-Ting Pan, Chao-Hung Zeng, Yi-Fu Hsieh
  • Apparatus Erasing Blackboard through Areas
    Publication number: 20110162163
    Abstract: The present invention wipes a writing board through areas. A teacher can wipe an area of a blackboard while writing on another area. Thus, a writing board can be flexibly used with convenience obtained and time saved.
    Type: Application
    Filed: January 7, 2010
    Publication date: July 7, 2011
    Applicant: NATIONAL CENTRAL UNIVERSITY
    Inventors: Shu-San Hsiau, Chi-Hsin Ho, Peng-Shin Lee, Po-Ting Pan, Chao-Hung Zeng, Yi-Fu Hsieh