1. All of the plaintiffs' claims are dismissed.

2. The costs of lawsuit are assessed against the plaintiffs.

1. Basic facts

(1) The title of the invention of this case 1) : 2) the filing date of the water-supply facility and its construction method / the patent registration number : on January 12, 2007 / 782359 / the plaintiffs 4) / 29 / 782359 / 1) the collection and alteration (1) shall be installed at the bottom of the sea floor (C) / the bottom of the pipes (1) so that the water-frames (2) above can be removed from the 3rd water collection facilities (2) the water-frames (2) the water-frames (2) shall be installed at the bottom of the pipes so that the water-frames (2) above may be removed from the 3rd water collection facilities (2) the water-frames (2) the water-frames (2) above may be removed from the pipes to the upper end of the water-water collection facilities (21).