E03F 7/02
Shut-off devices
Official title: Shut-off devices (in general F16K)
E03F7/02 (Shut-off devices) appears on 178 US grants and 123 published applications in this corpus.
Search patents in E03F- Granted patents
- 178
- Published applications
- 123
- Assignees
- 78
- Inventors
- 266
- Latest grant
- 31 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 4 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 4 | 0 |
| 1990 | 4 | 0 |
| 1991 | 7 | 0 |
| 1992 | 5 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 6 | 0 |
| 1996 | 7 | 0 |
| 1997 | 3 | 0 |
| 1998 | 5 | 0 |
| 1999 | 5 | 0 |
| 2000 | 8 | 0 |
| 2001 | 4 | 1 |
| 2002 | 1 | 1 |
| 2003 | 2 | 0 |
| 2004 | 0 | 4 |
| 2005 | 1 | 2 |
| 2006 | 2 | 0 |
| 2007 | 0 | 2 |
| 2008 | 1 | 3 |
| 2009 | 2 | 3 |
| 2010 | 0 | 1 |
| 2011 | 2 | 3 |
| 2012 | 1 | 3 |
| 2013 | 2 | 3 |
| 2014 | 2 | 9 |
| 2015 | 3 | 4 |
| 2016 | 4 | 6 |
| 2017 | 6 | 9 |
| 2018 | 11 | 14 |
| 2019 | 10 | 4 |
| 2020 | 10 | 7 |
| 2021 | 2 | 12 |
| 2022 | 9 | 12 |
| 2023 | 10 | 11 |
| 2024 | 11 | 4 |
| 2025 | 2 | 2 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Check cover assemblies for backflow prevention assemblies with integrated test cock protection shroud31 Mar 2026US 12,590,641 B2Watts Regulator Co.
- Systems and methods for backflow management28 Oct 2025US 12,454,821 B2900 Ethan Allen Hwy LLC
- Check valve connector system5 Aug 2025US 12,379,055 B2
- Backwater valve31 Dec 2024US 12,180,695 B2
- Passive backflow prevention apparatus and associated toilet system and method31 Dec 2024US 12,181,056 B2
- Sewer Cap Monitoring System23 Jul 2026US 2026/0210103 A1
- Systems and methods for backflow management5 Feb 2026US 2026/0035901 A1900 Ethan Allen Hwy LLC
- Device for troubleshooting, testing, and removing blockages from presssurized sewers5 Feb 2026US 2026/0035902 A1Astm Solutions, LLC
- Flood prevention system12 Jun 2025US 2025/0188729 A1
- Tide Gate Check Valve with an Enlarged Integral Annular Wall27 Feb 2025US 2025/0067355 A1Red Valve Company, Inc.
Most cited
By later US patents
- Check valve assembly and method for mounting and installing check valves within a housing73US 5,584,315 AAmes Company, Inc. · 1996
- Spring return check valve63US 6,050,294 AVal-Matic Valve & Manufacturing Corp. · 2000
- Sealing disc used in hydraulic testing of plumbing system59US 5,507,501 A1996
- Silt blockage for catch basins52US 5,345,741 AJ. & H. Slater Construction Co., Inc. · 1994
- Sewage system isolation valve assembly49US 4,936,350 A1990