Patents by Inventor Li-Min Ou

Li-Min Ou 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: 5346211
    Abstract: A game racket has a head frame comprising a network made of a plastic material of excellent elasticity and structural strength by injection molding. The network of the head frame is composed of a wrapping portion and a ball-striking portion. The wrapping portion has a width sufficient to wrap up the head frame while the ball-striking portion is formed by a plurality of horizontal strings and longitudinal strings of the wrapping portion, which interlace vertically one another. The head frame is therefore devoid of the string holes.
    Type: Grant
    Filed: June 24, 1993
    Date of Patent: September 13, 1994
    Inventors: Li-Min Ou, Chien-Der Lin
  • Patent number: 5326098
    Abstract: A badminton racket comprises a head, a shaft, and a hand grip. The hand grip is provided axially with a receiving hole of an appropriate depth for fastening the shaft with the hand grip. The receiving hole is provided at the bottom thereof with a conical portion becoming gradually smaller in dimension toward the upper end thereof from the lower end thereof. The hand grip is further provided axially with an elongate through hole extending from the upper end of the conical portion through the lower end wall of the hand grip. The adhesive coated on the inner wall of the receiving hole of the hand grip can not be therefore forced out by the shaft being inserted into the receiving hole of the hand grip during the process of fastening the shaft and the hand grip together.
    Type: Grant
    Filed: December 10, 1993
    Date of Patent: July 5, 1994
    Inventors: Li-Min Ou, Chien-Der Lin