E02B 7/44
Hinged-leaf gates
E02B7/44 (Hinged-leaf gates) appears on 58 US grants and 51 published applications in this corpus.
Search patents in E02B- Granted patents
- 58
- Published applications
- 51
- Assignees
- 26
- Inventors
- 103
- Latest grant
- 10 Jun 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 3 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 3 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 1 | 2 |
| 2007 | 0 | 2 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 0 | 4 |
| 2013 | 2 | 3 |
| 2014 | 1 | 3 |
| 2015 | 4 | 2 |
| 2016 | 3 | 4 |
| 2017 | 3 | 5 |
| 2018 | 3 | 7 |
| 2019 | 4 | 3 |
| 2020 | 3 | 2 |
| 2021 | 3 | 2 |
| 2022 | 1 | 2 |
| 2023 | 1 | 1 |
| 2024 | 1 | 2 |
| 2025 | 2 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Water control gate abutment air vent10 Jun 2025US 12,325,968 B2
- Watertight structure for flap gate and flap gate comprising same11 Feb 2025US 12,221,757 B2ASAHI INOVEX Corp.
- High-efficient swift stepless layering water taking gate device5 Nov 2024US 12,134,872 B2China Power Construction Group Guiyang Survey, Design and Research Institute Co., Ltd
- Systems for water control gate anchoring29 Aug 2023US 11,739,488 B2
- Sluice gate12 Jul 2022US 11,384,498 B2
- Flood barrier wall using double airbag and construction method therefor13 Aug 2026US 2026/0234883 A1Daedo Entech Co., Ltd.
- High-efficient swift stepless layering water intaking gate device25 Jul 2024US 2024/0247454 A1China Power Construction Group Guiyang Survey, Design and Research Institute Co., Ltd
- Composite fluid retaining barrier system14 Mar 2024US 2024/0084535 A1SNBC Inc.
- Water control gate abutment air vent8 Jun 2023US 2023/0175223 A1
- Watertight structure for flap gate and flap gate comprising same12 May 2022US 2022/0145562 A1ASAHI INOVEX Corp.
Most cited
By later US patents