Patents by Inventor Iyn-Yeong Ohern

Iyn-Yeong Ohern 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: 4850165
    Abstract: The invention relates to an improved heat resistance brick, which comprises an upper board and a lower board, said upper board being made of solid polylone, said lower board being made of the mixture of wooden chips and urea by means of press molding process, said upper and lower boards being arranged to provide water outlets, and said lower board being arranged to provide well-shaped drainage canals at the bottom so as to match with said water outlets for water drainage. By means of the color change on the upper board, the bricks are arranged on the roof to provide preferred patterns to make the roof more attractive. By means of the utilization of waste material to produce lower board to reduce the manufacturing cost. By means of said arrangement to provide good heat resistance bricks for practical use.
    Type: Grant
    Filed: November 15, 1988
    Date of Patent: July 25, 1989
    Inventor: Iyn-Yeong Ohern