A01D 34/246
Hydraulic lifting devices
Official title: {Hydraulic lifting devices}
A01D34/246 (Hydraulic lifting devices) appears on 19 US grants and 23 published applications in this corpus.
Search patents in A01D- Granted patents
- 19
- Published applications
- 23
- Assignees
- 13
- Inventors
- 43
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 1 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 3 |
| 2020 | 1 | 5 |
| 2021 | 2 | 2 |
| 2022 | 4 | 3 |
| 2023 | 0 | 3 |
| 2024 | 5 | 2 |
| 2025 | 0 | 3 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Ground pressure feedback sensor system for controlling header float1 Sep 2026US 12,721,255 B2CNH Industrial America LLC
- Calibration of harvesting head having a ground force sensing system3 Feb 2026US 12,538,865 B2CNH Industrial America LLC
- Tilt system field learning and optimization for a work vehicle18 Jun 2024US 12,010,942 B2Deere & Company
- Draper head with securing action for a height-adjustable reel11 Jun 2024US 12,004,453 B2Carl Geringhoff GmbH & Co. KG
- Obstacle detection and field mapping for a work vehicle21 May 2024US 11,985,918 B2Deere & Company
- Agricultural header float arm position and pressure control system16 Oct 2025US 2025/0318462 A1
- Agricultural header float arm position and pressure control system16 Oct 2025US 2025/0318463 A1
- Agricultural header float arm position and pressure control system16 Oct 2025US 2025/0318464 A1
- Height positioning and adjustment system for an agricultural implement10 Oct 2024US 2024/0334867 A1
- Height positioning and adjustment system for an agricultural implement27 Jun 2024US 2024/0206382 A1
Most cited
By later US patents
- Mounting apparatus for offset mower36US 4,183,195 ATerrain King Corporation · 1980
- Rotary mower having a stabilization device21US 4,669,256 AKuhn S. A. · 1987
- Turf maintenance machines20US 4,307,559 ARahsomes Sims & Jefferies Limited · 1981
- Mower attachment for tractors18US 4,048,789 A1977
- Hydraulic cylinder with integrated accumulator11US 7,104,052 B1Deere & Company · 2006