E02D 29/1427
Locking devices
Official title: {Locking devices}
E02D29/1427 (Locking devices) appears on 183 US grants and 147 published applications in this corpus.
Search patents in E02D- Granted patents
- 183
- Published applications
- 147
- Assignees
- 89
- Inventors
- 261
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 0 | 0 |
| 1990 | 4 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 4 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 0 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 2 |
| 2003 | 2 | 3 |
| 2004 | 9 | 5 |
| 2005 | 4 | 6 |
| 2006 | 3 | 7 |
| 2007 | 10 | 10 |
| 2008 | 6 | 12 |
| 2009 | 4 | 7 |
| 2010 | 12 | 4 |
| 2011 | 8 | 2 |
| 2012 | 3 | 4 |
| 2013 | 4 | 5 |
| 2014 | 3 | 11 |
| 2015 | 8 | 5 |
| 2016 | 11 | 12 |
| 2017 | 7 | 10 |
| 2018 | 6 | 8 |
| 2019 | 9 | 7 |
| 2020 | 2 | 4 |
| 2021 | 7 | 3 |
| 2022 | 4 | 4 |
| 2023 | 4 | 1 |
| 2024 | 2 | 4 |
| 2025 | 2 | 8 |
| 2026 | 5 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Manhole cover assembly29 Sep 2026US 12,747,556 B2Neenah Foundry Company
- Manhole lock system22 Sep 2026US 12,742,300 B2EJ USA, Inc.
- Sealed hatch assembly for underground enclosure18 Aug 2026US 12,709,859 B2
- Frame and cover for inground utility enclosures21 Jul 2026US 12,686,988 B2Omega Metalworks LLC
- Enclosure system for underground utility connections5 May 2026US 12,620,794 B2Channell Commercial Corporation
- Hybrid hand hole28 May 2026US 2026/0146399 A1
- Manhole cover, manhole covering and monitoring sytem26 Feb 2026US 2026/0055571 A1Aco Ahlmann SE & Co. KG
- Cover system for controlled entry of access holes formed in overpasses, freeways, bridges, or roads and method of installation12 Feb 2026US 2026/0043212 A1SmartCycle Solutions Inc
- Secondary safety lid for a riser system13 Nov 2025US 2025/0347078 A1Advanced Drainage Systems, Inc.
- Enclosure system for underground utility connections28 Aug 2025US 2025/0273945 A1Channell Commercial Corporation
Most cited
By later US patents