Patents by Inventor Lin H. Ling

Lin H. Ling 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 cleaning vegetable, rice and the like
    Patent number: 5184544
    Abstract: A device for cleaning rice or vegetable such as beans in a tank containing cleaning water is provided. The cleaning water is manually agitated. A removable basket having a perforated bottom is rotatably positioned in the tank. An agitator static with respect to the tank is removably positioned in the basket. Filter screens are mounted to the perforated bottom of the basket.
    Type: Grant
    Filed: May 5, 1992
    Date of Patent: February 9, 1993
    Assignee: Chien-Jen Wang
    Inventor: Lin H. Ling