Patents by Inventor Chan K. Leung

Chan K. Leung 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).

  • Publication number: 20110073425
    Abstract: This invention relates to a carrying case used to transport objects or documents, such as posters, drawings, or blueprints for presentation at conventions, exhibitions, meetings or similar functions. The expandable carrying case is made of leather or similarly sturdy, durable synthetic material such as nylon. It has flexible tubes that constitute a protective container for objects or rolled-up documents when deployed, and can be coiled up and stored in the said cylindrical case when not in use. The benefits of the present invention include its versatility in transporting objects or documents of different sizes or lengths. The flexible extensions are interconnected to each other, and to the cover and elongated tubular member through zippers, or similarly durable, sturdy fasteners to form one enclosed, protective carrier. This makes the current invention a uniquely versatile, flexible and reusable (hence “green”) transport/storage device.
    Type: Application
    Filed: September 29, 2009
    Publication date: March 31, 2011
    Inventors: CYNTHIA O. SIU, Giacomo Aiazzi, Carla Brambilla, Chan K. Leung
  • Patent number: D289537
    Type: Grant
    Filed: March 5, 1984
    Date of Patent: April 28, 1987
    Assignee: Blue Box Toy Factory Limited
    Inventor: Chan K. Leung
  • Patent number: D297747
    Type: Grant
    Filed: July 14, 1986
    Date of Patent: September 20, 1988
    Assignee: Blue Box Toy Factory Limited
    Inventor: Chan K. Leung