Patents by Inventor Li-Fang Tong

Li-Fang Tong 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).

  • Foot sensor rubbish bin
    Patent number: 8113112
    Abstract: A foot sensor rubbish bin is controlled to open and close by extending the user's foot into a recess of a base to actuate a sensor without using the user's hands, which provides the user with much convenience. Moreover, since the sensor is disposed at the recess of the base, the unnecessary interference can be avoided, thus reducing the energy waste and complying with the requirements of environmental protection.
    Type: Grant
    Filed: June 5, 2009
    Date of Patent: February 14, 2012
    Inventor: Li-Fang Tong
  • Foot Sensor Rubbish Bin
    Publication number: 20100308045
    Abstract: A foot sensor rubbish bin is controlled to open and close by extending the user's foot into a recess of a base to actuate a sensor without using the user's hands, which provides the user with much convenience. Moreover, since the sensor is disposed at the recess of the base, the unnecessary interference can be avoided, thus reducing the energy waste and complying with the requirements of environmental protection.
    Type: Application
    Filed: June 5, 2009
    Publication date: December 9, 2010
    Inventor: Li-Fang TONG