E02F 9/2271
Actuators and supports therefor and protection therefor
Official title: {Actuators and supports therefor and protection therefor}
E02F9/2271 (Actuators and supports therefor and protection therefor) appears on 562 US grants and 590 published applications in this corpus.
Search patents in E02F- Granted patents
- 562
- Published applications
- 590
- Assignees
- 169
- Inventors
- 1,101
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 4 | 0 |
| 1997 | 4 | 0 |
| 1998 | 10 | 0 |
| 1999 | 5 | 0 |
| 2000 | 5 | 0 |
| 2001 | 5 | 1 |
| 2002 | 8 | 10 |
| 2003 | 7 | 11 |
| 2004 | 7 | 12 |
| 2005 | 11 | 5 |
| 2006 | 12 | 10 |
| 2007 | 2 | 3 |
| 2008 | 4 | 5 |
| 2009 | 5 | 7 |
| 2010 | 4 | 9 |
| 2011 | 3 | 11 |
| 2012 | 7 | 3 |
| 2013 | 6 | 10 |
| 2014 | 10 | 22 |
| 2015 | 11 | 15 |
| 2016 | 14 | 23 |
| 2017 | 17 | 64 |
| 2018 | 29 | 47 |
| 2019 | 53 | 43 |
| 2020 | 61 | 67 |
| 2021 | 42 | 46 |
| 2022 | 47 | 68 |
| 2023 | 31 | 28 |
| 2024 | 50 | 37 |
| 2025 | 42 | 20 |
| 2026 | 21 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Differential dozer blade lift and angle mechanism6 Oct 2026US 12,753,572 B2
- Actuator assembly for a heavy construction machine25 Aug 2026US 12,716,429 B2Wipro Enterprises Pvt Ltd
- Method for real-time hydraulic cylinder drift monitoring25 Aug 2026US 12,716,432 B2Caterpillar Inc.
- Slide up cab door for work machine4 Aug 2026US 12,698,615 B2Great Plains Manufacturing, Inc.
- Machine controls for trailer loading/unloading4 Aug 2026US 12,698,616 B2Sumitomo Construction Machinery Co., Ltd.
- Drive system of electrically driven construction machine20 Aug 2026US 2026/0243057 A1Hitachi Construction Machinery Tierra Co., Ltd.
- Hydraulic system management method for machine control13 Aug 2026US 2026/0234895 A1Deere & Company
- Work Machine13 Aug 2026US 2026/0234907 A1Hitachi Construction Machinery Co., Ltd.
- Mobile machine with improved electric powered actuator system6 Aug 2026US 2026/0226710 A1Moog Inc.
- Work machine6 Aug 2026US 2026/0226927 A1Komatsu Ltd.
Most cited
By later US patents
- Features of main control computer for a power machine60US 6,202,014 B1Clark Equipment Company · 2001
- Apparatus for recovering pressure oil returned from actuators39US 6,151,894 AKomatsu Ltd. · 2000
- Structure for mounting hydraulic hoses for a power loader38US 5,232,330 ADeere & Company · 1993
- Hydraulic piping structure for a backhoe33US 5,108,253 AKubota Corporation · 1992
- Method and a system for establishing mechanical and multiple-fluid couplings between a tool and a tool-carrier frame32US 6,899,509 B1Mailleux S.A. · 2005