Patents by Inventor Onsri Thangsrirojkul

Onsri Thangsrirojkul 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).

  • Bag for alternative use
    Patent number: 5480229
    Abstract: A device to be used alternatively as a bag and a mat comprises a piece of a flexible sheet material and releaseable fastening to confine said piece to the shape of a bottom with side walls which can be interconnected by edge connecting.
    Type: Grant
    Filed: June 21, 1994
    Date of Patent: January 2, 1996
    Assignee: IM International, Co., Ltd.
    Inventor: Onsri Thangsrirojkul