E02F 9/2257
Vehicle levelling or suspension systems
Official title: {Vehicle levelling or suspension systems (suspensions for vehicles in general B60G)}
E02F9/2257 (Vehicle levelling or suspension systems) appears on 51 US grants and 41 published applications in this corpus.
Search patents in E02F- Granted patents
- 51
- Published applications
- 41
- Assignees
- 32
- Inventors
- 89
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 2 |
| 2003 | 2 | 3 |
| 2004 | 4 | 4 |
| 2005 | 0 | 0 |
| 2006 | 2 | 2 |
| 2007 | 1 | 1 |
| 2008 | 0 | 2 |
| 2009 | 1 | 2 |
| 2010 | 2 | 0 |
| 2011 | 0 | 1 |
| 2012 | 2 | 3 |
| 2013 | 2 | 0 |
| 2014 | 1 | 1 |
| 2015 | 1 | 0 |
| 2016 | 1 | 3 |
| 2017 | 0 | 1 |
| 2018 | 2 | 3 |
| 2019 | 3 | 1 |
| 2020 | 2 | 0 |
| 2021 | 2 | 6 |
| 2022 | 1 | 1 |
| 2023 | 4 | 1 |
| 2024 | 1 | 1 |
| 2025 | 0 | 1 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Hydraulic systems for mobile machines and associated methods14 Jul 2026US 12,679,165 B1Caterpillar Paving Products Inc.
- Locking control method for a pivot axle, a pivot axle locking controller and a pivot axle locking system13 Jan 2026US 12,522,041 B2Volvo Construction Equipment AB
- Anti-bounce control systems for machines, and associated methods31 Dec 2024US 12,180,676 B2Caterpillar Inc.
- Four-legged construction machine having slope stability system with locking valves24 Oct 2023US 11,795,664 B2Caterpillar Paving Products Inc.
- Accumulator pre-charge monitoring using position sensor17 Oct 2023US 11,788,563 B2Deere & Company
- Hybrid architecture for smart power management on off-highway machines18 Jun 2026US 2026/0168211 A1Deere & Company
- Hydraulic system for leg assembly of work machine14 May 2026US 2026/0132596 A1Caterpillar Paving Products Inc.
- Automatic Levelling of Work Machine13 Nov 2025US 2025/0347085 A1Caterpillar Inc.
- Locking control method for a pivot axle, a pivot axle locking controller and a pivot axle locking system26 Dec 2024US 2024/0424852 A1Volvo Construction Equipment AB
- Anti-bounce control systems for machines, and associated methods12 Jan 2023US 2023/0008505 A1Caterpillar Inc.
Most cited
By later US patents
- Forklift stabilizing apparatus71US 5,639,119 ATrak International, LLC · 1997
- Forklift stabilizing apparatus48US 5,813,697 ATrak International, LLC · 1998
- Leveling and lockup system for wheel tractor suspension system40US 3,953,040 ACaterpillar Tractor Co. · 1976
- Tractor implement orientation system35US 5,180,028 A1993
- Material handling machine32US 5,618,156 ACaterpillar Inc. · 1997