Patents by Inventor Tat Yin Choo

Tat Yin Choo 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: 5765407
    Abstract: A device and method for respectively providing and using a small, portable, discreet, yet complete on-the-spot stain remover unit. The unit can be activated on-the-spot to remove accidentally spilled food or beverage stains by removing the appropriate modules or body portions to achieve the desired cleaning steps. The stain removing or cleaning unit has a main applicator body, two sub-applicator bodies and two end covers. The modules, when connected together, make up the complete cleaning kit. The unit is designed to enable a user to perform four basic steps for cleaning a stain the instant it occurs, i.e., detergent soak, soiled detergent pickup, rinse and final drying.
    Type: Grant
    Filed: September 9, 1996
    Date of Patent: June 16, 1998
    Assignee: Dasaver, Inc.
    Inventors: Tat Yin Choo, John A. MacNeill