Patents by Inventor Ronel Domingo Callueng

Ronel Domingo Callueng 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).

  • Device for disinfecting door handles
    Patent number: 6874697
    Abstract: A device for disinfecting door handles and knobs comprising a dispenser for soap or disinfectant adapted to spray the soap or disinfectant on the door handles or knobs when triggered by the motion of a hand.
    Type: Grant
    Filed: June 24, 2003
    Date of Patent: April 5, 2005
    Inventor: Ronel Domingo Callueng
  • Device for disinfecting door Handles
    Publication number: 20040026530
    Abstract: A device for disinfecting door handles and knobs comprising a dispenser for soap or disinfectant adapted to spray the soap or disinfectant on the door handles or knobs when triggered by the motion of a hand.
    Type: Application
    Filed: June 24, 2003
    Publication date: February 12, 2004
    Inventor: Ronel Domingo Callueng