E02D 29/1454
Non-circular covers
Official title: {Non-circular covers, e.g. hexagonal, elliptic}
E02D29/1454 (Non-circular covers) appears on 33 US grants and 47 published applications in this corpus.
Search patents in E02D- Granted patents
- 33
- Published applications
- 47
- Assignees
- 33
- Inventors
- 80
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 2 |
| 2011 | 0 | 2 |
| 2012 | 1 | 1 |
| 2013 | 2 | 2 |
| 2014 | 2 | 3 |
| 2015 | 2 | 2 |
| 2016 | 3 | 4 |
| 2017 | 0 | 4 |
| 2018 | 2 | 3 |
| 2019 | 4 | 4 |
| 2020 | 1 | 2 |
| 2021 | 2 | 2 |
| 2022 | 2 | 0 |
| 2023 | 1 | 4 |
| 2024 | 4 | 6 |
| 2025 | 0 | 1 |
| 2026 | 5 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Lightweight molded covers and plates8 Sep 2026US 12,729,501 B2Hubbell Incorporated
- Frame and cover for inground utility enclosures21 Jul 2026US 12,686,988 B2Omega Metalworks LLC
- Enclosure cover assemblies7 Jul 2026US 12,674,295 B2Hubbell Incorporated
- Modular network access frame and cover12 May 2026US 12,624,516 B2Cubis Systems Limited
- Utility cover28 Apr 2026US 12,612,756 B2Hubbell Incorporated
- Universal mount cover assembly for underground enclosures8 Oct 2026US 2026/0308865 A1Oldcastle Infrastructure, Inc.
- In-ground utility access box and related methods1 Oct 2026US 2026/0302754 A1American Polymer Corporation
- Utility cover6 Aug 2026US 2026/0226697 A1Hubbell Incorporated
- Manhole19 Feb 2026US 2026/0049457 A1ELDI GmbH
- Cover29 May 2025US 2025/0171980 A1AFL Telecommunications LLC
Most cited
By later US patents
- High strength cover for underground utility box24US 4,266,380 AChristy Concrete Products, Inc. · 1981
- Lifting mechanism for horizontal hinged doors24US 6,021,606 AThe Bilco Company · 2000
- Utilities access closure20US 8,469,628 B2J. S. Land Management Corporation · 2013
- Utilities access closure11US 8,821,062 B2Oldcastle Precast, Inc. · 2014
- See-through manhole cover7US 9,258,992 B22016