B66F 19/005
Lifting devices for manhole covers
Official title: {Lifting devices for manhole covers}
B66F19/005 (Lifting devices for manhole covers) appears on 111 US grants and 67 published applications in this corpus.
Search patents in B66F- Granted patents
- 111
- Published applications
- 67
- Assignees
- 34
- Inventors
- 144
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 3 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 5 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 4 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 5 | 1 |
| 2002 | 4 | 1 |
| 2003 | 2 | 3 |
| 2004 | 1 | 1 |
| 2005 | 3 | 2 |
| 2006 | 1 | 2 |
| 2007 | 3 | 6 |
| 2008 | 1 | 1 |
| 2009 | 2 | 3 |
| 2010 | 2 | 1 |
| 2011 | 1 | 1 |
| 2012 | 1 | 5 |
| 2013 | 3 | 4 |
| 2014 | 2 | 1 |
| 2015 | 2 | 0 |
| 2016 | 2 | 3 |
| 2017 | 5 | 3 |
| 2018 | 0 | 3 |
| 2019 | 2 | 0 |
| 2020 | 2 | 2 |
| 2021 | 4 | 4 |
| 2022 | 1 | 1 |
| 2023 | 2 | 4 |
| 2024 | 5 | 9 |
| 2025 | 5 | 1 |
| 2026 | 2 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Clamping tool for manway cover and related methods1 Sep 2026US 12,722,960 B2Eyler Design Solutions, LLC
- Method and apparatus for lifting grates6 Jan 2026US 12,515,933 B2Ohio Gratings, Inc.
- Lift system for utility covers18 Nov 2025US 12,473,185 B2Consolidated Edison Company of New York, Inc.
- Manhole cover tool and method7 Oct 2025US 12,434,956 B2
- Fulcrum pry bar19 Aug 2025US 12,391,528 B2Polytex Concrete LLC
- Lifting Apparatus1 Oct 2026US 2026/0296865 A1
- Manipulator for opening and for closing a swinging cover for a manhole of a steam generator and associated opening and closing methods24 Sep 2026US 2026/0285665 A1
- Clamping tool for manway cover and related methods3 Sep 2026US 2026/0257903 A1Eyler Design Solutions, LLC
- Method and apparatus for lifting grates2 Apr 2026US 2026/0091963 A1Ohio Gratings, Inc.
- Clamping tool for manway cover and related methods5 Feb 2026US 2026/0035226 A1Eyler Design Solutions, LLC
Most cited
By later US patents
- Structures for supporting manhole covers, grates and the like provided with self-storing adjustable leveling apparatus37US 4,337,005 A1982
- Manhole cover lifting hook37US 4,488,706 A1984
- Manhole cover lifter36US 4,365,925 A1982
- Manhole lid lifter35US 4,482,182 A1984
- Manhole cover lifting device35US 4,991,893 ASaddle Vent, Inc. · 1991