Patents by Inventor Chang Am Koh

Chang Am Koh 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).

  • Doll assembled of prefabricated weave sections of rush stalks
    Patent number: 4959036
    Abstract: A doll made of rush stalks assembled of prefabricated body sections comprising rusk stalk fabrics woven into a ball shape form or other body forms and a head section fitted into the body such that the doll makes best use of the original nature of rush stalks while providing the refinement of a fancy doll.
    Type: Grant
    Filed: February 29, 1984
    Date of Patent: September 25, 1990
    Inventor: Chang-Am Koh
  • Doll of rush stalks
    Patent number: 4854912
    Abstract: A doll having an upper body section of rush stalks being tied or plaited or braided into a shape and a lower body section of rush stalks having a plain skirt or a pleated skirt, wherein both body sections are joined by means of a bar passing through support plates or by adhesive means.
    Type: Grant
    Filed: February 7, 1984
    Date of Patent: August 8, 1989
    Inventor: Chang-Am Koh
  • Doll
    Patent number: D276642
    Type: Grant
    Filed: June 21, 1982
    Date of Patent: December 4, 1984
    Inventor: Chang Am Koh