E03B 9/08
Underground hydrants
E03B9/08 (Underground hydrants) appears on 128 US grants and 90 published applications in this corpus.
Search patents in E03B- Granted patents
- 128
- Published applications
- 90
- Assignees
- 54
- Inventors
- 168
- Latest grant
- 14 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 6 | 0 |
| 1995 | 6 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 5 | 0 |
| 1999 | 1 | 0 |
| 2000 | 6 | 0 |
| 2001 | 1 | 1 |
| 2002 | 1 | 0 |
| 2003 | 0 | 1 |
| 2004 | 2 | 3 |
| 2005 | 2 | 1 |
| 2006 | 3 | 5 |
| 2007 | 1 | 2 |
| 2008 | 2 | 6 |
| 2009 | 5 | 6 |
| 2010 | 1 | 3 |
| 2011 | 4 | 4 |
| 2012 | 3 | 3 |
| 2013 | 2 | 1 |
| 2014 | 2 | 2 |
| 2015 | 4 | 8 |
| 2016 | 5 | 3 |
| 2017 | 4 | 7 |
| 2018 | 4 | 7 |
| 2019 | 4 | 1 |
| 2020 | 7 | 6 |
| 2021 | 4 | 6 |
| 2022 | 7 | 3 |
| 2023 | 5 | 4 |
| 2024 | 4 | 4 |
| 2025 | 3 | 3 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Removable valve plug assembly14 Apr 2026US 12,601,419 B2Ussi, LLC
- System for remote control operation of hydrant10 Mar 2026US 12,571,188 B2Semperfire, LLC
- Hydrant, method for disassembly of a spindle arrangement from a hydrant and method for assembly of a spindle arrangement in a hydrant8 Jul 2025US 12,352,019 B2Vonroll Infratec (Investment) AG
- Water valve manipulation device15 Apr 2025US 12,276,093 B2
- Meter pit and method of manufacturing the same7 Jan 2025US 12,188,211 B2Bingham & Taylor Corp.
- Removable valve plug assembly29 May 2025US 2025/0172216 A1Ussi, LLC
- Water Valve Manipulation Device27 Feb 2025US 2025/0067030 A1
- Method and apparatus for catching silt27 Feb 2025US 2025/0067366 A1
- System for remote control operation of hydrant24 Oct 2024US 2024/0352715 A1Semperfire, LLC
- Duct shut-off device provided with a measuring device comprising a transmitter21 Mar 2024US 2024/0094083 A1A. Raymond Et Cie
Most cited
By later US patents
- Fire hydrant security systems54US 6,089,253 AHydra-Shield Manufacturing, Inc. · 2000
- Frost-resistant hydrant42US 5,392,805 AAmerikam, Inc. · 1995
- Hydrant cap leak detector with oriented sensor41US 10,859,462 B2Mueller International, LLC · 2020
- Valve service box and method of making38US 5,327,925 A1994
- Cover height adjuster38US 5,360,131 APhilmac Pty Ltd · 1994