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Class Information
Number: 405/81
Name: Hydraulic and earth engineering > Fluid control, treatment, or containment > Flow control > Fishway
Description: Method or apparatus to enable fish to pass an obstruction in a stream.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7594779 |
Bottom fed screened water diversion apparatus |
Sep. 29, 2009 |
| 7410324 |
Bio-passage for disrupting laminar flow |
Aug. 12, 2008 |
| 6988853 |
Muted tidal regulator |
Jan. 24, 2006 |
| 6964541 |
Fish safe screened water diversion apparatus |
Nov. 15, 2005 |
| 6955759 |
Porous dike intake structure for fish diversion |
Oct. 18, 2005 |
| 6942423 |
Migratory fish channel associated with one or more dams in a river |
Sep. 13, 2005 |
| 6905287 |
Water containment structure with fish ladder |
Jun. 14, 2005 |
| 6793440 |
Natural cue surface bypass collector |
Sep. 21, 2004 |
| 6739802 |
Fish test circuit and method for evaluation of waterway barrier fish bypass systems |
May. 25, 2004 |
| 6729800 |
Flow velocity enhancement system |
May. 4, 2004 |
| 6726404 |
Device and method for simulating natural cues so that waterborne fauna avoid contacting manmade barriers |
Apr. 27, 2004 |
| 6715959 |
Fish ladder for passing dams |
Apr. 6, 2004 |
| 6712555 |
Flow inducer fish guide and method of using same |
Mar. 30, 2004 |
| 6682651 |
Barrel type fish and/or particulate screen device |
Jan. 27, 2004 |
| 6652189 |
Method for a migratory fish bypass channel with natural features |
Nov. 25, 2003 |
| 6588370 |
Labyrinth weir and pool fishway |
Jul. 8, 2003 |
| 6524028 |
Fish safe screened water diversion apparatus |
Feb. 25, 2003 |
| 6467998 |
Self-regulating weirs and fishways |
Oct. 22, 2002 |
| 6467997 |
System and method for diverting fish around a structure |
Oct. 22, 2002 |
| 6394699 |
Apparatus for reduced flow fish passage |
May. 28, 2002 |
| 6347908 |
Fish guidance system |
Feb. 19, 2002 |
| 6325570 |
Fishway system with turbine |
Dec. 4, 2001 |
| 6273639 |
Method and apparatus for facilitating migration of fish past dams and other barriers in waterways |
Aug. 14, 2001 |
| 6155746 |
Fish ladder and its construction |
Dec. 5, 2000 |
| 6102619 |
Flow inducer fish guide and method of using same |
Aug. 15, 2000 |
| 5762449 |
River or lake bottom apparatus for scavenger fish control |
Jun. 9, 1998 |
| 5673449 |
Flow compensation device for bridge pillars |
Oct. 7, 1997 |
| 5632572 |
Guidance apparatus and method for anadromous fish |
May. 27, 1997 |
| 5558462 |
Flat plate fish screen system |
Sep. 24, 1996 |
| 5433554 |
Salt concentration gradient fishway |
Jul. 18, 1995 |
| 5385428 |
Water intake fish diversion apparatus |
Jan. 31, 1995 |
| 5263833 |
Fish guiding assembly and method utilizing same |
Nov. 23, 1993 |
| 5161913 |
Method and apparatus for migratory fish passage to the sea |
Nov. 10, 1992 |
| 5139364 |
Automatic swing fishway apparatus |
Aug. 18, 1992 |
| 5078542 |
Apparatus to prevent the entrance of aquatic species into the intake watercourse |
Jan. 7, 1992 |
| 4929122 |
Fish protection system for dams |
May. 29, 1990 |
| 4740105 |
Fish diversion system |
Apr. 26, 1988 |
| 4657434 |
River control structures |
Apr. 14, 1987 |
| 4629361 |
Integrated tubal by-pass fishway |
Dec. 16, 1986 |
| 4526494 |
Penstock fish diversion system |
Jul. 2, 1985 |
| 4481904 |
Fish conservation device |
Nov. 13, 1984 |
| 4437431 |
Method and apparatus for diversion of downstream migrating anadromous fish |
Mar. 20, 1984 |
| 4260286 |
Integrated fish migration system |
Apr. 7, 1981 |
| 4176984 |
Fish holding pan on traveling water screen and method of flushing same |
Dec. 4, 1979 |
| 4064048 |
Water intake and fish control system |
Dec. 20, 1977 |
| 4029049 |
Fish barrier |
Jun. 14, 1977 |
| 3996138 |
Marine life protector |
Dec. 7, 1976 |
| 3962876 |
Fishway |
Jun. 15, 1976 |
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