Patents by Inventor Bak Gyu Lim

Bak Gyu Lim 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: 6250294
    Abstract: The present invention relates to an air compression type shooting device comprising: a fixed compression tube having a rubber ring for holding a bullet attached to the end thereof; a movable compression tube placed movably back and forth by the rear grip and the spring in the fixed compression tube; a piston biased by the spring in the movable compression tube and moved back and forth in a guide tube to inhale and compress the air; and a trigger for holding and releasing the piston.
    Type: Grant
    Filed: October 4, 1999
    Date of Patent: June 26, 2001
    Inventor: Bak Gyu Lim