Y02A 20/402
River restoration
Y02A20/402 (River restoration) appears on 22 US grants and 31 published applications in this corpus.
Search patents in Y02A- Granted patents
- 22
- Published applications
- 31
- Assignees
- 20
- Inventors
- 98
- Latest grant
- 16 Apr 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 1 | 3 |
| 2006 | 0 | 3 |
| 2007 | 1 | 2 |
| 2008 | 2 | 2 |
| 2009 | 1 | 1 |
| 2010 | 1 | 1 |
| 2011 | 0 | 3 |
| 2012 | 3 | 1 |
| 2013 | 2 | 2 |
| 2014 | 0 | 0 |
| 2015 | 1 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 2 |
| 2018 | 0 | 1 |
| 2019 | 2 | 0 |
| 2020 | 1 | 2 |
| 2021 | 1 | 1 |
| 2022 | 0 | 2 |
| 2023 | 1 | 0 |
| 2024 | 1 | 0 |
| 2025 | 0 | 2 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Treatment system and method for sandy soil landfill solid waste polluted river channel16 Apr 2024US 11,959,238 B1Nanjing Institute of Environmental Sciences, MEE
- Method for continuous measurement of river flow based on satellite big data31 Jan 2023US 11,566,895 B2Bureau of Hydrology, Changjiang Water Resources Commission
- Alternating side-baffle fish ladder for passing fish at dams or natural barriers9 Nov 2021US 11,168,453 B2
- Biohydrochemical enhancement structure for stream-water treatment25 Feb 2020US 10,570,578 B2
- Method for generating pancreatic bud cells and therapeutic agent for pancreatic disease containing pancreatic bud cells12 Nov 2019US 10,472,610 B2Kyoto University
- Water Distribution Regulation Method for Reclaimed Waterway Landscape Environments Based on Algae Risk Control5 Mar 2026US 2026/0061379 A1Zhejiang Institute of Hydraulics & Estuary (Zhejiang Institute of Marine Planning and Design)
- Health assessment method of an aquatic ecosystem based on ecological integrity and an application thereof13 Nov 2025US 2025/0348823 A1Beijing Normal University
- Natural mineral-derived lumilite ecological restoration agent and method of manufacturing same9 Jan 2025US 2025/0011192 A1
- Method for continuous measurement of river flow based on satellite big data6 Oct 2022US 2022/0316876 A1Bureau of Hydrology, Changjiang Water Resources Commission
- Breathable geosynthetic clay liner and production process therefor13 Jan 2022US 2022/0009195 A1Beijing Rechsand Science & Technology Group Co., Ltd.
Most cited
By later US patents
- Method for purifying sewage36US 5,614,102 A1997
- River and tidal power harvester33US 8,102,071 B22012
- System, method and computer program product for aquatic environment assessment29US 7,353,113 B22008
- Underwater immersion block and method to produce the same18US 6,843,843 B2NKK Corporation · 2005
- Sewage purification apparatus16US 5,350,511 A1994