Patents by Inventor Yu Chi Lok

Yu Chi Lok 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).

  • Toilet apparatus
    Patent number: 9663933
    Abstract: A toilet apparatus includes a toilet bowl with a seat, a reservoir for containing water for flushing the toilet bowl, and a water jet device including a conduit with an inlet, an outlet, and a nozzle at the outlet and located in the toilet bowl for generating a water jet to clean a user. A thermoelectric heat pump having a cold side in thermal communication with water in the reservoir extracts heat from the water in the reservoir and a hot side in thermal communication with a conduit section of the conduit supplies heat extracted from water in the reservoir and increases the temperature of water flowing through the conduit.
    Type: Grant
    Filed: May 15, 2015
    Date of Patent: May 30, 2017
    Assignee: DEFOND HOLDINGS (H. K.) CO. LIMITED
    Inventors: Kai Chi Chan, Kwok Chiu Yu, Yu Chi Lok
  • TOILET APPARATUS
    Publication number: 20160333561
    Abstract: A toilet apparatus includes a toilet bowl with a seat, a reservoir for containing water for flushing the toilet bowl, and a water jet device including a conduit with an inlet, an outlet, and a nozzle at the outlet and located in the toilet bowl for generating a water jet to clean a user. A thermoelectric heat pump having a cold side in thermal communication with water in the reservoir extracts heat from the water in the reservoir and a hot side in thermal communication with a conduit section of the conduit supplies heat extracted from water in the reservoir and increases the temperature of water flowing through the conduit.
    Type: Application
    Filed: May 15, 2015
    Publication date: November 17, 2016
    Inventors: Kai Chi Chan, Kwok Chiu Yu, Yu Chi Lok