Patents by Inventor Ting-Pin Wu

Ting-Pin 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).

  • Patent number: 7248163
    Abstract: A knob assembly with lock and a status indicator is mounted in a toilet stall door and has a tubular lock, an indicator and a battery container. The tubular lock is mounted through door. The indicator is mounted on an outer surface of the tubular lock. When the toilet stall door is locked, the indicator emits light. Consequently, people are able to determine the door is locked. With a clear and visible indication that the toilet stall door is locked, people will not push the door so the door will not be damaged.
    Type: Grant
    Filed: April 8, 2005
    Date of Patent: July 24, 2007
    Inventor: Ting-Pin Wu
  • Publication number: 20060226660
    Abstract: A lock with a status indicator has a seat, a latch seat, a latch and an indicator. The seat is mounted inside a public toilet stall door. The latch seat is mounted on a doorframe jamb and corresponds to and aligns with the seat. The latch is mounted in the seat and has a distal end that selectively engages the latch seat to lock the door. The indicator is mounted on the outside of the door. When the toilet stall door is locked, the indicator turns on to indicate that the toilet stall is occupied. With a clear and visible indication that the toilet stall door is locked, people will not push the door so the door will not be damaged.
    Type: Application
    Filed: April 11, 2005
    Publication date: October 12, 2006
    Inventor: Ting-Pin Wu
  • Publication number: 20060227000
    Abstract: A knob assembly with lock and a status indicator is mounted in a toilet stall door and has a tubular lock, an indicator and a battery container. The tubular lock is mounted through door. The indicator is mounted on an outer surface of the tubular lock. When the toilet stall door is locked, the indicator emits light. Consequently, people are able to determine the door is locked. With a clear and visible indication that the toilet stall door is locked, people will not push the door so the door will not be damaged.
    Type: Application
    Filed: April 8, 2005
    Publication date: October 12, 2006
    Inventor: Ting-Pin Wu