Patents by Inventor Chi-Sheng CHIEN

Chi-Sheng CHIEN 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).

  • Bone screw, method for manufacturing the bone screw, and tool for mounting and removing the bone screw
    Patent number: 9060824
    Abstract: A bone screw includes a front portion, a rear portion, and a shaft portion. The shaft portion is fixedly joined to the front portion and the rear portion, so as to form an integral bone screw. The Young's modulus of the shaft portion is smaller than that of the front portion and that of the rear portion.
    Type: Grant
    Filed: November 16, 2012
    Date of Patent: June 23, 2015
    Assignee: METAL INDUSTRIES RESEARCH & DEVELOPMENT CENTRE
    Inventors: Chi-Sheng Chien, Tsung-Chih Yu, Chung-Hsing Yu, Shien-Nan Kuo
  • BONE SCREW, METHOD FOR MANUFACTURING THE BONE SCREW, AND TOOL FOR MOUNTING AND REMOVING THE BONE SCREW
    Publication number: 20130131733
    Abstract: A bone screw includes a front portion, a rear portion, and a shaft portion. The shaft portion is fixedly joined to the front portion and the rear portion, so as to form an integral bone screw. The Young's modulus of the shaft portion is smaller than that of the front portion and that of the rear portion.
    Type: Application
    Filed: November 16, 2012
    Publication date: May 23, 2013
    Applicant: Metal Industries Research&Development Centre
    Inventors: Chi-Sheng CHIEN, Tsung-Chih Yu, Chung-Hsing Yu, Shien-Nan Kuo