Patents by Inventor Ching-Ho Ko

Ching-Ho Ko 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).

  • Exercising apparatus
    Patent number: 5310395
    Abstract: An exercising apparatus includes a base having two upright handles on two opposite sides thereof and a ball bearing, a rotary table supported on the ball bearing and moved to turn thereon and having an upright support in the center, a foot board balanced on the upright support and moved to turn the rotary table on the ball bearing of the base, and tensile elements bilaterally connected between the rotary table and the foot board for permitting the foot board to be alternatively oscillated back and forth.
    Type: Grant
    Filed: October 28, 1993
    Date of Patent: May 10, 1994
    Assignee: Yow Li Feng Industrial Co., Ltd.
    Inventor: Ching-Ho Ko
  • Foot exercising apparatus
    Patent number: 5299995
    Abstract: A foot exercising apparatus including a main support adjustably mounted on a base plate in a sloping position, two linked sliding blocks driven by pedals with the legs to slide alternatively up and down in two tracks on two opposite long sides of the main support.
    Type: Grant
    Filed: May 10, 1993
    Date of Patent: April 5, 1994
    Assignee: Yow Li Feng Industrial Co. Ltd.
    Inventor: Ching-Ho Ko
  • Dumbbell
    Patent number: D352981
    Type: Grant
    Filed: June 28, 1993
    Date of Patent: November 29, 1994
    Assignee: Yow Li Feng Industrial Co., Ltd.
    Inventor: Ching-Ho Ko