Patents by Inventor Ching Man Yu

Ching Man Yu 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).

  • Hygienic Rubbish Bin
    Publication number: 20090008402
    Abstract: The present invention relates to a hygienic rubbish capable of killing harmful bacteria and expelling odors that may result from rubbish. The hygienic bin accomplishes this by including as components an ultraviolet light and exhaust system.
    Type: Application
    Filed: July 2, 2007
    Publication date: January 8, 2009
    Applicant: The Hong Kong Polytechnic University
    Inventors: Alan Kin-tak Lau, Kwan Sing Chan, Chi Pang Leung, Ching Man Yu