Patents by Inventor Joseph Ang

Joseph Ang 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).

  • Analog time teaching device
    Patent number: 6071124
    Abstract: The present invention relates to a device that teaches how to tell time from an analog clock. More particularly, the invention relates to the integration of an analog clock and a digital clock into one single time teaching unit.
    Type: Grant
    Filed: February 26, 1998
    Date of Patent: June 6, 2000
    Assignee: Hope Industries, Inc.
    Inventors: Joseph Ang, Godfred E. Tong
  • Shoelace locking device
    Patent number: 5022127
    Abstract: A shoelace locking device has a base with holes through which shoelaces can be threaded to attach it to a shoe. The base has a first well in which the knot can rest, and a plurality of serrated projections for retaining the laces. The base has a flexible elastic sheath integral with an elastic hinge and cover. The cover has a matching second well for receiving part of the knot. An elastic latch on the cover can be pulled over a catch on the base to lock the assembly closed and prevent the knot from untying.
    Type: Grant
    Filed: December 20, 1989
    Date of Patent: June 11, 1991
    Assignee: Hope Industries, Inc.
    Inventor: Joseph Ang