Patents by Inventor Kai Sing Lee

Kai Sing Lee 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: 3970558
    Abstract: An automatic fluid filtering system especially designed for reclaiming, deodorizing, decolorizing, and filtering hot frying greases or oil used in restaurants, hamburger stands, fried food industries, homes, and other places and having a means of utilizing wood charcoals, Norite, Salite and various filtering materials such as filter paper, toilet tissues, porous ceramics, etc., to remove food debris, odorous materials and also being very simple in operation and capable of rapidly carrying out the filtration task automatically right in the kitchen working area at any time when fresh clean grease is needed.
    Type: Grant
    Filed: February 21, 1974
    Date of Patent: July 20, 1976
    Inventor: Kai Sing Lee