Patents by Inventor Cheng-Loung Wu

Cheng-Loung Wu 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).

  • Correction tape dispenser
    Patent number: 7654297
    Abstract: A correction tape dispenser has a front cover, a core assembly, an extending-and-retracting mechanism and a rear cover. The core assembly is mounted slidably in the front cover and has a convex portion extending out of the front cover. The extending-and-retracting mechanism selectively drives the core assembly to hold forward or backward. The rear cover is mounted on the front cover. A user pushes the core assembly with the extending-and-retracting mechanism forward to extend the head out of or retract the head into the front cover. Retracting the head prevents dust from accumulating on a correction tape on the head.
    Type: Grant
    Filed: January 24, 2007
    Date of Patent: February 2, 2010
    Assignee: SDI Corporation
    Inventor: Cheng-Loung Wu
  • Correction tape dispenser
    Publication number: 20080173406
    Abstract: A correction tape dispenser has a front cover, a core assembly, an extending-and-retracting mechanism and a rear cover. The core assembly is mounted slidably in the front cover and has a convex portion extending out of the front cover. The extending-and-retracting mechanism selectively drives the core assembly to hold forward or backward. The rear cover is mounted on the front cover. A user pushes the core assembly with the extending-and-retracting mechanism forward to extend the head out of or retract the head into the front cover. Retracting the head prevents dust from accumulating on a correction tape on the head.
    Type: Application
    Filed: January 24, 2007
    Publication date: July 24, 2008
    Inventor: Cheng-Loung Wu
  • Correction tape dispenser
    Patent number: D544544
    Type: Grant
    Filed: November 7, 2006
    Date of Patent: June 12, 2007
    Assignee: SDI Corporation
    Inventor: Cheng-Loung Wu
  • Correction tape dispenser
    Patent number: D547804
    Type: Grant
    Filed: November 2, 2006
    Date of Patent: July 31, 2007
    Assignee: SDI Corporation
    Inventor: Cheng-Loung Wu