Patents by Inventor Tseng L. Chun

Tseng L. Chun 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).

  • Vacuum storage container
    Patent number: 5232016
    Abstract: A vacuum storage container, which comprises a container with a lid for sealing the container; the lid is mounted with a sucking valve, which is a check valve to have the air in the container pumped out only in one-way upon the container being closed hermetically; after the container being in vacuum or similar to a vacuum condition, a substance in the container can be stored for a long time without changing the quality thereof.
    Type: Grant
    Filed: September 30, 1992
    Date of Patent: August 3, 1993
    Inventor: Tseng L. Chun