Patents by Inventor Bong Chul Yang

Bong Chul Yang 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).

  • Paper cup with sipping straw formed thereon
    Patent number: 6155478
    Abstract: A paper cup with a sipping straw integrally formed thereon is disclosed. The paper cup with a sipping straw integrally formed thereon is manufactured either by attaching a separate paper member (11), or by forming an expanded portion (21). The sipping straw (17) or (27) is provided with a slot (16) or (26), and folding lines. An upper portion (37) of the sipping straw is folded down to be attached onto a side of the paper cup during a non-use, and is straightened up during a use. Further, wrinkles are formed on the upper portion of the sipping straw, so that the sipping straw can be properly bent during a use for the sake of convenience.
    Type: Grant
    Filed: January 10, 2000
    Date of Patent: December 5, 2000
    Inventor: Bong Chul Yang