E02D 29/1445
Tools for positioning or removing cover frames
Official title: {Tools for positioning or removing cover frames}
E02D29/1445 (Tools for positioning or removing cover frames) appears on 53 US grants and 55 published applications in this corpus.
Search patents in E02D- Granted patents
- 53
- Published applications
- 55
- Assignees
- 32
- Inventors
- 86
- Latest grant
- 15 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 3 |
| 2003 | 2 | 6 |
| 2004 | 7 | 6 |
| 2005 | 4 | 2 |
| 2006 | 1 | 1 |
| 2007 | 0 | 1 |
| 2008 | 1 | 2 |
| 2009 | 1 | 2 |
| 2010 | 1 | 1 |
| 2011 | 3 | 1 |
| 2012 | 0 | 1 |
| 2013 | 0 | 1 |
| 2014 | 1 | 2 |
| 2015 | 1 | 0 |
| 2016 | 1 | 5 |
| 2017 | 2 | 2 |
| 2018 | 3 | 1 |
| 2019 | 5 | 5 |
| 2020 | 1 | 1 |
| 2021 | 3 | 3 |
| 2022 | 3 | 2 |
| 2023 | 0 | 3 |
| 2024 | 2 | 3 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Modular access cover15 Jul 2025US 12,359,391 B2Access Covers Australia Pty Ltd
- Method for adjusting or replacing a manhole floating type hatch12 Nov 2024US 12,139,875 B2
- Automated tool access to a manhole through automated manhole cover removal using self-driving vehicle27 Feb 2024US 11,913,188 B2R.H. Borden and Company, LLC
- Cover lift and move apparatus6 Dec 2022US 11,518,661 B2Bigham Easy Lift, LLC
- Claw device15 Nov 2022US 11,498,814 B1
- Cover29 May 2025US 2025/0171980 A1AFL Telecommunications LLC
- Manhole Cover5 Dec 2024US 2024/0400351 A1Oliver's Hire Solutions Ltd
- Lifting device for covers18 Jul 2024US 2024/0239640 A1
- Adjustable cover for roadway opening13 Jun 2024US 2024/0191454 A1Windham Industries, Inc.
- Locking apparatus for manhole iron cover28 Sep 2023US 2023/0304251 A1Nippon Chutetsukan K.K.
Most cited
By later US patents
- Composite article60US 4,726,707 A1988
- Adjustable manhole apparatus38US 6,457,901 B1Precision Cover Systems, Inc. · 2002
- Adjustable height utility access device31US 6,524,026 B2Precision Cover Systems, Inc. · 2003
- Manhole casting removing device23US 4,458,949 A1984
- Height and angle adjustable utility access device and method18US 6,520,713 B2Precision Cover Systems, Inc. · 2003