E02D 29/1463
Hinged connection of cover to frame
Official title: {Hinged connection of cover to frame}
E02D29/1463 (Hinged connection of cover to frame) appears on 72 US grants and 53 published applications in this corpus.
Search patents in E02D- Granted patents
- 72
- Published applications
- 53
- Assignees
- 42
- Inventors
- 100
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 4 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 6 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 2 |
| 2002 | 2 | 1 |
| 2003 | 0 | 0 |
| 2004 | 2 | 2 |
| 2005 | 1 | 2 |
| 2006 | 5 | 4 |
| 2007 | 1 | 2 |
| 2008 | 1 | 2 |
| 2009 | 1 | 2 |
| 2010 | 2 | 3 |
| 2011 | 5 | 2 |
| 2012 | 2 | 2 |
| 2013 | 3 | 3 |
| 2014 | 2 | 2 |
| 2015 | 1 | 2 |
| 2016 | 4 | 5 |
| 2017 | 1 | 3 |
| 2018 | 3 | 2 |
| 2019 | 2 | 3 |
| 2020 | 2 | 1 |
| 2021 | 4 | 1 |
| 2022 | 1 | 0 |
| 2023 | 0 | 2 |
| 2024 | 0 | 2 |
| 2025 | 0 | 2 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- 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
- Manhole apparatus14 Jun 2022US 11,359,346 B2The Regional Municipality of Peel
- Manhole device18 May 2021US 11,008,728 B2Caswick Limited
- Manway open and close assist device2 Mar 2021US 10,934,088 B2Srm, LLC
- Manhole cover8 Jan 2026US 2026/0009199 A1Star Pipe Products, Inc.
- Secondary safety lid for a riser system13 Nov 2025US 2025/0347078 A1Advanced Drainage Systems, Inc.
- Sealed Hatch Assembly for Underground Enclosure5 Jun 2025US 2025/0179757 A1U.S.F. Fabrication, Inc.
- Hatch assembly22 Aug 2024US 2024/0279897 A1GB Design Limited
- Frame and cover for inground utility enclosures18 Jul 2024US 2024/0240424 A1Omega Metalworks LLC
Most cited
By later US patents
- Waterproof pit cover78US 5,950,368 ADabico, Inc. · 1999
- Locking cover76US 5,324,135 A1994
- Manhole cover hinge assembly69US 8,206,058 B2East Jordan Iron Works, Inc. · 2012
- Manhole cover apparatus and method51US 5,366,317 A1994
- Aircraft servicing pit with retractable ladder36US 5,282,339 ADabico, Inc. · 1994