Patents by Inventor William W. Lien

William W. Lien 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: 5566407
    Abstract: An infant's crib for newborn infants and infants beyond in age is made, whereby the infant will always have available breathing air, providing the infant with ample oxygen, and preventing the buildup of carbon dioxide exhausted by the infant, as this carbon dioxide is carried away by air circulating under the infant's crib. The infant is supported on permeable materials which in turn are supported on a crib frame. The permeable materials are positioned at a spaced distance over a supporting structure upon which portions of the crib frame are positioned. Preferably, two layers of permeable materials are used. The bottom permeable layer is strong enough to support the infant and has many openings per square inch. The top permeable layer, lying on the bottom permeable layer, is used to improve the comfort of the infant, and there are fewer openings per square inch. Both the top and bottom permeable layers are readily removed for cleaning.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: October 22, 1996
    Inventor: William W. Lien