Patents by Inventor Ka Tung Ho

Ka Tung Ho 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).

  • Patent number: 8709137
    Abstract: A method and an apparatus are provided for deodorizing and disinfecting air and droplets from urinal, toilet bowl, and other receivers and holders of urine and fecal matter. The apparatus comprises a housing (1) having an air inlet (2) and air outlet (3), wherein the housing (1) encloses a droplet removal chamber (4) for removing droplets from airflow; a deodorization and disinfection chamber (5) for removing air contaminants in the airflow; and an delivery unit (6) for airflow generation. Being actively drawn into the apparatus, air contaminants such as odor, bacteria and virus are removed without discharge of contaminated air and causing secondary pollution. The apparatus and method provide odorless and comfortable environment and avoid disease transmission in both public and domestic toilets.
    Type: Grant
    Filed: September 11, 2009
    Date of Patent: April 29, 2014
    Assignee: RHI Limited
    Inventors: Chi Keung Rudy Chan, Yee Lam Chan, Lam Lung Yeung, Ka Tung Ho
  • Publication number: 20120227586
    Abstract: A method and an apparatus are provided for deodorizing and disinfecting air and droplets from urinal, toilet bowl, and other receivers and holders of urine and fecal matter. The apparatus comprises a housing (1) having an air inlet (2) and air outlet (3), wherein the housing (1) encloses a droplet removal chamber (4) for removing droplets from airflow; a deodorization and disinfection chamber (5) for removing air contaminants in the airflow; and an delivery unit (6) for airflow generation. Being actively drawn into the apparatus, air contaminants such as odor, bacteria and virus are removed without discharge of contaminated air and causing secondary pollution. The apparatus and method provide odorless and comfortable environment and avoid disease transmission in both public and domestic toilets.
    Type: Application
    Filed: September 11, 2009
    Publication date: September 13, 2012
    Applicant: WIN UNION DEVELOPMENT LIMITED
    Inventors: Chi Keung Rudy Chan, Yee Lam Chan, Lam Lung Yeung, Ka Tung Ho