E02B 7/205
Barrages controlled by the variations of the water level
Official title: {Barrages controlled by the variations of the water level; automatically functioning barrages (level regulators G05D9/00; the documents are filed in this subdivision and the relevant subdivision E02B7/26 - E02B7/50)}
E02B7/205 (Barrages controlled by the variations of the water level) appears on 59 US grants and 50 published applications in this corpus.
Search patents in E02B- Granted patents
- 59
- Published applications
- 50
- Assignees
- 37
- Inventors
- 149
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 2 | 5 |
| 2004 | 1 | 0 |
| 2005 | 0 | 2 |
| 2006 | 1 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 2 |
| 2010 | 1 | 2 |
| 2011 | 1 | 2 |
| 2012 | 1 | 2 |
| 2013 | 0 | 1 |
| 2014 | 1 | 4 |
| 2015 | 1 | 3 |
| 2016 | 5 | 5 |
| 2017 | 3 | 2 |
| 2018 | 1 | 2 |
| 2019 | 3 | 2 |
| 2020 | 2 | 3 |
| 2021 | 1 | 2 |
| 2022 | 3 | 3 |
| 2023 | 3 | 0 |
| 2024 | 1 | 4 |
| 2025 | 3 | 3 |
| 2026 | 3 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Automatic flood gate52US 6,623,209 B1Floodbreak, L.L.C. · 2003
- Liquid level control system and method of operating the same46US 4,772,157 A1988
- Sluice gate for automatically regulating a level45US 4,963,057 ASociete Anonyme dite: Alsthom Fluides · 1990
- Automatic level-regulating sluice43US 4,797,027 AAlsthom · 1989
- Penstock32US 4,549,837 A1985