08715496 is referenced by 2 patents and cites 54 patents.

A system for altering water properties in an outdoor body of water includes a holding vessel configured to hold water. The holding vessel has at least one wall extending above a mean surface water level. The system also includes at least one conduit extending downward from the holding vessel. The at least one conduit has a length extending to a depth at which at least one property of water at the depth differs substantially from that of water at the surface. The system further includes at least one aperture formed in at least one of the holding vessel or the at least one conduit and located at a distance below the mean surface water level. Further still, the system includes at least one one way valve coupled to the at least one aperture and allowing flow of water in only one direction.

Title
Water alteration structure and system having below surface valves or wave reflectors
Application Number
12/12225
Publication Number
8715496 (B2)
Application Date
January 30, 2008
Publication Date
May 6, 2014
Inventor
Victoria Y H Wood
Livermore
CA, US
Lowell L Wood Jr
Bellevue
WA, US
Willard H Wattenburg
Walnut Creek
CA, US
Clarence T Tegreene
Bellevue
WA, US
Stephen H Salter
Edinburgh
GB
Nathan P Myhrvold
Medina
WA, US
John Latham
Boulder
CO, US
Jordin T Kare
Seattle
WA, US
Muriel Y Ishikawa
Livermore
CA, US
Roderick A Hyde
Redmond
WA, US
William H Gates III
Redmond
WA, US
Alistair K Chan
Stillwater
MN, US
Kenneth G Caldeira
Campbell
CA, US
Jeffrey A Bowers
Kirkland
WA, US
IPC
F04B 17/00
E02B 9/08
B01D 17/00
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