Patents by Inventor Myeong Seok YOO

Myeong Seok YOO 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).

  • PIPE LAYER HAVING SWING SPEED ADJUSTABLE SYSTEM
    Publication number: 20100018197
    Abstract: A pipe layer having a swing speed adjustable system is provided, which can be used as a pipe layer or an excavator through replacement of attachments in accordance with work conditions, so that it serves as the pipe layer when it is required to pull up and carry a heavyweight oil pipe in order to lay the oil pipe under the ground, while it serves as the excavator when a quick swing work is required.
    Type: Application
    Filed: July 23, 2009
    Publication date: January 28, 2010
    Inventors: Myeong Seok YOO, Soo Bong Hwang