Patents by Inventor Man-Chi Lai

Man-Chi Lai 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: 6263943
    Abstract: A modular rolling shutter for store windows and doors, comprised of vertically alternating rows of buckles and slats. Each slat is linked with the lower and upper buckles, allowing limited movement of the slats and buckles so that the modular shutter may be rolled and unrolled along tracks. The slats may be made of a transparent material allowing visibility without sacrificing weather resistance or security. Rolling shutters of various sizes which have the advantages of corrosion resistance, ease of transport, manufacture and repair can be easily formed.
    Type: Grant
    Filed: December 11, 1998
    Date of Patent: July 24, 2001
    Inventor: Man-Chi Lai
  • Patent number: 6041847
    Abstract: The invention discloses a building block for rolling shutters which are use to shield and protect the door and windows of a shop. The blocks are made of plastic sheets, adopt new forms of engagements, and can be connected to form shutters of various sizes conveniently and optionally. The shutters made of this kind of plastic sheets overcome the disadvantage of vulnerability of metal shutters to rust, and are convenient to maintain, clean and replace any part thereof, and can prevent the penetration of rain water. When transparent plastic sheets are used to make the shutter blocks, people can see the exhibits behind the shutters to make the shutters not only have a theft-preventing function, but also achieve an advertising effect.
    Type: Grant
    Filed: September 8, 1998
    Date of Patent: March 28, 2000
    Assignee: Wai-Man Lai
    Inventor: Man-Chi Lai
  • Patent number: D408553
    Type: Grant
    Filed: January 15, 1998
    Date of Patent: April 20, 1999
    Inventor: Man-Chi Lai