E02F 3/3668
Where engagement is effected by a mechanical lever or handle
Official title: {where engagement is effected by a mechanical lever or handle}
E02F3/3668 (Where engagement is effected by a mechanical lever or handle) appears on 93 US grants and 61 published applications in this corpus.
Search patents in E02F- Granted patents
- 93
- Published applications
- 61
- Assignees
- 51
- Inventors
- 166
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 4 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 3 | 0 |
| 2001 | 4 | 1 |
| 2002 | 5 | 3 |
| 2003 | 2 | 1 |
| 2004 | 1 | 2 |
| 2005 | 2 | 2 |
| 2006 | 3 | 2 |
| 2007 | 0 | 5 |
| 2008 | 2 | 0 |
| 2009 | 3 | 0 |
| 2010 | 2 | 1 |
| 2011 | 1 | 1 |
| 2012 | 0 | 1 |
| 2013 | 1 | 2 |
| 2014 | 3 | 1 |
| 2015 | 4 | 4 |
| 2016 | 1 | 6 |
| 2017 | 4 | 6 |
| 2018 | 5 | 2 |
| 2019 | 3 | 4 |
| 2020 | 2 | 1 |
| 2021 | 2 | 4 |
| 2022 | 3 | 1 |
| 2023 | 4 | 2 |
| 2024 | 1 | 2 |
| 2025 | 2 | 3 |
| 2026 | 1 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Quick coupler and quick coupler system with such a quick coupler5 May 2026US 12,618,221 B2OilQuick Deutschland KG
- Excavator bucket locking and security device for efficient transport2 Sep 2025US 12,404,651 B2
- Construction machine21 Jan 2025US 12,203,234 B2Kobelco Construction Machinery Co., Ltd.
- Quick coupler19 Nov 2024US 12,146,288 B2Wedgelock Equipment Limited
- Implement carrier26 Dec 2023US 11,851,845 B2Doosan Bobcat North America, Inc.
- Automatic quick connect apparatus13 Aug 2026US 2026/0234894 A1Deere & Company
- Quick-change apparatus for engineering machinery and engineering machinery30 Jul 2026US 2026/0218480 A1Jiangsu Xcmg Construction Machinery Research Institute Ltd.
- Excavator attachment25 Jun 2026US 2026/0176839 A1OilQuick Deutschland KG
- Connection device for detachable Backhoe14 May 2026US 2026/0132589 A1Taesung Mfg. Co., Ltd
- Quick-release fastener device formed of two connection parts, for attaching a tool to the end of the arm of a machine23 Oct 2025US 2025/0327265 A1
Most cited
By later US patents
- Quick attachment carrier assembly71US 4,436,477 AFarmhand, Inc. · 1984
- Automatic quick-connect coupler for implements67US 5,692,855 AFarmers' Factory Company · 1997
- Implement attachment bracket for skid steer loader mounting plate65US 6,499,934 B1Clark Equipment Company · 2002
- Quick change attachment63US 3,985,249 AInternational Harvester Company · 1976
- Multipurpose work attachment for a front end loader53US 5,564,885 A1996