Patents by Inventor Chen Ming-Chieh

Chen Ming-Chieh 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).

  • Helical torsion spring with an attached clip
    Patent number: 5666702
    Abstract: An improved helical torsion spring is disclosed which contains an integrally attached clip. The improved helical torsion contains: (a) a helical torsion spring having a coiled portion and front and end non-coiled portions; (b) a clip having a transverse opening for sleeving about the coiled portion of the helical torsion spring, and a concave slot for receiving a slim-bodied object. The transverse opening of the clip has a section-section smaller than a length of either of the front or end non-coiled portion so as to retain the clip therebetween. The improved helical torsion spring can be used in essentially the same a conventional torsion spring can be used; however, it provides the advantage of being able to carry a slim-bodied object such as pencils, pens, or other similar goods.
    Type: Grant
    Filed: May 31, 1996
    Date of Patent: September 16, 1997
    Inventor: Chen Ming-Chieh
  • Clip pad
    Patent number: D388830
    Type: Grant
    Filed: June 25, 1996
    Date of Patent: January 6, 1998
    Inventor: Chen Ming-Chieh
  • Clip structure for a clip board
    Patent number: D409244
    Type: Grant
    Filed: September 18, 1998
    Date of Patent: May 4, 1999
    Inventor: Chen Ming-Chieh