Patents by Inventor Chiu-Keung Kwan

Chiu-Keung Kwan 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: 6328625
    Abstract: A toy figure having multiple articulating limbs connected to the torso by pivot joints that are molded in a vertical injection molding step that forms and pivotally interconnects, in situ, one member of the pivot joint to a second, preformed member of the pivot joint.
    Type: Grant
    Filed: April 17, 2000
    Date of Patent: December 11, 2001
    Assignee: C. J. Associates, Ltd.
    Inventors: James S. W. Lee, Chiu Keung Kwan
  • Patent number: 6287166
    Abstract: A toy figure having multiple articulating limbs connected to the torso by pivot joints that are molded in a vertical injection molding step that forms and pivotally interconnects, in situ, one member of the pivot joint to a second, pre-formed member of the pivot joint.
    Type: Grant
    Filed: April 17, 2000
    Date of Patent: September 11, 2001
    Assignee: C. J. Associates, Limited
    Inventors: James S. W. Lee, Chiu Keung Kwan
  • Patent number: 6220922
    Abstract: An inanimate figure having soft, resiliently deformable skin defining a body and limbs, at least one of the limbs housing an articulating limb structure comprising at least two substantially rigid limb frame members joined by at least one articulating joint disposed therebetween.
    Type: Grant
    Filed: June 11, 1999
    Date of Patent: April 24, 2001
    Assignee: C. J. Associates, Ltd.
    Inventors: James S. W. Lee, Chiu-Keung Kwan
  • Patent number: 6190584
    Abstract: A method of molding, from porous material, a low-density product having an impermeable surface. A mold is provided which has a cavity, the outline of which defines the outline of the product. The starting material is a flat sheet of plastic foam. The first step of the process, in some cases, is a pre-heating procedure, which softens the material. Then, from this sheet there is stamped a blank having substantially the outline of the desired product, which is then inserted into the mold cavity. The mold is then heated with the blank therein to form the blank permanently into the desired product, after which the mold is quenched in cold water with the product still inside. The product is subsequently removed from the mold and frozen. The result of this molding method is a low-density product having an impermeable surface integral with the foam interior which is suitable for receiving various types of brightly colored finished.
    Type: Grant
    Filed: July 6, 1999
    Date of Patent: February 20, 2001
    Assignee: C.J. Associates, Ltd.
    Inventors: James S. W. Lee, Chiu-Keung Kwan
  • Patent number: 6089950
    Abstract: A toy figure having multiple articulating limbs connected to the torso by pivot joints that are molded in a vertical injection molding step that forms and pivotally interconnects, in situ, one member of the pivot joint to a second, pre-formed member of the pivot joint.
    Type: Grant
    Filed: June 1, 1998
    Date of Patent: July 18, 2000
    Assignee: C. J. Associates, Ltd.
    Inventors: James S. W. Lee, Chiu Keung Kwan
  • Patent number: 5881483
    Abstract: Advertisement at the point of purchase is presented by a box containing a rotary device which displays graphic material on each step of the device. The rotary device is mounted in a box having a lens focused on the graphic material. A very low cost is achieved by a plastic plate shaped to form two cantilever springs, one of the cantilever springs has a tooth which steps the rotary drive into a viewing position, and the other of the cantilever springs has a tooth which stops the rotary device in a viewing position.
    Type: Grant
    Filed: October 6, 1997
    Date of Patent: March 16, 1999
    Assignee: C.J. Associates Ltd.
    Inventors: James S. W. Lee, Chiu Keung Kwan
  • Patent number: 5842905
    Abstract: A simple, general purpose temporary dyeing process for coloring plastic or plastic fabric is disclosed. A colorless, but pH sensitive indicator solution is applied to a plastic material, such as the hair of a fashion doll, without changing the hair color. A developer solution of a specific pH range is subsequently applied to the doll hair, thereby causing the color of the hair to change. As the hair dries and the developer solution evaporates, the hair returns to its original color.
    Type: Grant
    Filed: September 26, 1997
    Date of Patent: December 1, 1998
    Assignee: C.J. Associates, Ltd.
    Inventors: James S. W. Lee, Chiu Keung Kwan, Chiu Kien-Wan, Chen Kan-Nan
  • Patent number: 5288256
    Abstract: A thrown toy has a water tank with valves which are opened by centrifugal force. When thrown, the toy is designed to whirl so that the centrifugal force opens a valve and water is dispersed out the valves while the toy is in flight.
    Type: Grant
    Filed: November 23, 1992
    Date of Patent: February 22, 1994
    Assignee: C.J. Associates, Ltd.
    Inventors: James S. W. Lee, Chiu-Keung Kwan
  • Patent number: D418556
    Type: Grant
    Filed: October 5, 1998
    Date of Patent: January 4, 2000
    Assignee: C.J. Associates, Ltd.
    Inventors: James S. W. Lee, Chiu Keung Kwan
  • Patent number: D419623
    Type: Grant
    Filed: April 11, 1997
    Date of Patent: January 25, 2000
    Assignee: C. J. Associates, Ltd.
    Inventors: James S. W. Lee, Chiu Keung Kwan
  • Patent number: D421468
    Type: Grant
    Filed: October 5, 1998
    Date of Patent: March 7, 2000
    Assignee: C.J. Associates, Ltd.
    Inventors: James S. W. Lee, Chiu Keung Kwan