Patents by Inventor Chih-Chan HSU

Chih-Chan HSU 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).

  • Ball chair
    Patent number: 9713383
    Abstract: A ball chair includes a ball-shaped cushion, a seat, a back and at least a threaded fastening member. The seat has a bearing portion for bearing the cushion, and a connecting portion connected with the bearing portion and having an engaging recess and at least a through hole communicating with the engaging recess. The back has an engaging block inserted in the engaging recess and having at least two relatively larger protrusions, at least a relatively smaller protrusion located between the two relatively larger protrusions, and at least a threaded hole provided in the relatively smaller protrusion and corresponding in position to the through hole. The threaded fastening member is inserted through the through hole and fixed in the threaded hole to fix the back to the seat.
    Type: Grant
    Filed: June 4, 2015
    Date of Patent: July 25, 2017
    Assignee: Chia Lin Sport Co., Ltd.
    Inventor: Chih-Chan Hsu
  • BALL CHAIR
    Publication number: 20160353894
    Abstract: A ball chair includes a ball-shaped cushion, a seat, a back and at least a threaded fastening member. The seat has a bearing portion for bearing the cushion, and a connecting portion connected with the bearing portion and having an engaging recess and at least a through hole communicating with the engaging recess. The back has an engaging block inserted in the engaging recess and having at least two relatively larger protrusions, at least a relatively smaller protrusion located between the two relatively larger protrusions, and at least a threaded hole provided in the relatively smaller protrusion and corresponding in position to the through hole. The threaded fastening member is inserted through the through hole and fixed in the threaded hole to fix the back to the seat.
    Type: Application
    Filed: June 4, 2015
    Publication date: December 8, 2016
    Inventor: Chih-Chan HSU
  • Ball chair
    Patent number: D783301
    Type: Grant
    Filed: September 16, 2015
    Date of Patent: April 11, 2017
    Assignee: CHI LIN SPORT CO., LTD.
    Inventor: Chih-Chan Hsu
  • Base seat of a ball chair
    Patent number: D834840
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: December 4, 2018
    Assignee: CHIA LIN SPORT CO., LTD.
    Inventor: Chih-Chan Hsu