E02D 29/1436
With overflow or explosion control means
Official title: {with overflow or explosion control means, e.g. check or relief valves}
E02D29/1436 (With overflow or explosion control means) appears on 26 US grants and 24 published applications in this corpus.
Search patents in E02D- Granted patents
- 26
- Published applications
- 24
- Assignees
- 12
- Inventors
- 37
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 1 | 1 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 1 | 3 |
| 2015 | 1 | 1 |
| 2016 | 2 | 5 |
| 2017 | 2 | 1 |
| 2018 | 1 | 1 |
| 2019 | 1 | 1 |
| 2020 | 1 | 2 |
| 2021 | 2 | 1 |
| 2022 | 1 | 2 |
| 2023 | 1 | 3 |
| 2024 | 2 | 0 |
| 2025 | 3 | 2 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Extension pipe for manhole cover11 Aug 2026US 12,703,954 B2Sewer Sentry LLC
- Sel-reporting monitor for integrity and conditions of manhole cover18 Nov 2025US 12,473,705 B2Hon Hai Precision Industry Co., Ltd.
- Vented precipitation guarding manhole cover assembly1 Jul 2025US 12,345,011 B2Sewer Sentry LLC
- Vented precipitation guarding manhole cover assembly8 Apr 2025US 12,270,175 B2Sewer Sentry LLC
- Smart system for manhole event suppression system24 Dec 2024US 12,173,913 B2Novinium, Inc.
- Vented precipitation guarding manhole cover assembly9 Oct 2025US 2025/0314034 A1Sewer Sentry LLC
- Cover29 May 2025US 2025/0171980 A1AFL Telecommunications LLC
- Vented precipitation guarding manhole cover assembly24 Aug 2023US 2023/0265637 A1Sewer Sentry LLC
- Extension pipe for manhole cover22 Jun 2023US 2023/0193580 A1Sewer Sentry LLC
- Sel-reporting monitor for integrity and conditions of manhole cover4 May 2023US 2023/0134011 A1Hon Hai Precision Industry Co., Ltd.
Most cited
By later US patents
- Manhole cover stop mechanism25US 7,891,904 B22011
- Manhole restraining system for venting out explosive gases in a manhole17US 6,350,081 B1Department of Water and Power City of Los Angeles · 2002
- Watertight sealing system with relief valve for manhole having a spill bucket14US 5,743,673 A1998
- Storm drain system and method14US 7,101,114 B12006
- Method of controllably venting gases generated by explosions in a manhole space14US 7,712,995 B22010