E02B 8/08
Fish passes or other means providing for migration of fish
Official title: Fish passes {or other means providing for migration of fish}; Passages for rafts or boats
E02B8/08 (Fish passes or other means providing for migration of fish) appears on 96 US grants and 95 published applications in this corpus.
Search patents in E02B- Granted patents
- 96
- Published applications
- 95
- Assignees
- 56
- Inventors
- 248
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 3 | 0 |
| 2002 | 4 | 2 |
| 2003 | 2 | 5 |
| 2004 | 4 | 6 |
| 2005 | 3 | 4 |
| 2006 | 2 | 4 |
| 2007 | 2 | 5 |
| 2008 | 1 | 2 |
| 2009 | 1 | 1 |
| 2010 | 2 | 2 |
| 2011 | 2 | 2 |
| 2012 | 1 | 1 |
| 2013 | 2 | 1 |
| 2014 | 0 | 2 |
| 2015 | 2 | 3 |
| 2016 | 1 | 5 |
| 2017 | 5 | 6 |
| 2018 | 2 | 3 |
| 2019 | 3 | 4 |
| 2020 | 6 | 6 |
| 2021 | 3 | 3 |
| 2022 | 2 | 3 |
| 2023 | 4 | 7 |
| 2024 | 5 | 12 |
| 2025 | 4 | 2 |
| 2026 | 6 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Step-by-step paired and up-down reciprocating combined fishway and fish passage method18 Aug 2026US 12,709,852 B2Anhui University of Science and Technology
- Method, system and apparatus for asymmetric flow guidance of fish26 May 2026US 12,637,821 B2
- Precast dam structure with flowpath19 May 2026US 12,630,990 B2W.L. French Hydropower Holdings LLC
- Fish transfer system and method14 Apr 2026US 12,601,132 B2The University of New South Wales
- Water oxygenation system and method to improve the efficacy and utilization of fish slides and ladders24 Feb 2026US 12,557,795 B2GIS Gas Infusion Systems Inc.
- Auxiliary Facilities and Method for Fish Resource Recovery in Open Water Diversion Channel7 May 2026US 2026/0125869 A1China Institute of Water Resources and Hydropower Research
- Taiji fishway structure23 Apr 2026US 2026/0110150 A1Changsha Hetong Ecological Environment Technology Co., Ltd
- Dam with Contaminants Entombing Cap29 Jan 2026US 2026/0028788 A1W.L. French Hydropower Holdings LLC
- Fishway with a pool head and a pool tail15 Jan 2026US 2026/0015809 A1Changsha Hetong Ecological Environment Technology Co., Ltd
- Screening device21 Aug 2025US 2025/0262577 A1Huber SE
Most cited
By later US patents
- Method and apparatus for migratory fish passage to the sea38US 5,161,913 A1992
- Method and apparatus for diversion of downstream migrating anadromous fish37US 4,437,431 A1984
- Integrated fish migration system34US 4,260,286 A1981
- Self-cleaning screen33US 4,415,462 A1983
- Fish diversion system31US 4,740,105 AEugene Water & Electric Board · 1988