F15B 2211/528
Actuated by fluid pressure
Official title: actuated by fluid pressure
F15B2211/528 (Actuated by fluid pressure) appears on 283 US grants and 178 published applications in this corpus.
Search patents in F15B- Granted patents
- 283
- Published applications
- 178
- Assignees
- 178
- Inventors
- 540
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 4 | 0 |
| 1978 | 4 | 0 |
| 1979 | 5 | 0 |
| 1980 | 3 | 0 |
| 1981 | 5 | 0 |
| 1982 | 4 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 3 | 0 |
| 1987 | 2 | 0 |
| 1988 | 6 | 0 |
| 1989 | 5 | 0 |
| 1990 | 1 | 0 |
| 1991 | 6 | 0 |
| 1992 | 5 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 4 | 0 |
| 1996 | 0 | 0 |
| 1997 | 3 | 0 |
| 1998 | 6 | 0 |
| 1999 | 5 | 0 |
| 2000 | 4 | 0 |
| 2001 | 16 | 1 |
| 2002 | 8 | 3 |
| 2003 | 8 | 13 |
| 2004 | 9 | 9 |
| 2005 | 8 | 9 |
| 2006 | 7 | 5 |
| 2007 | 6 | 7 |
| 2008 | 2 | 1 |
| 2009 | 3 | 3 |
| 2010 | 3 | 4 |
| 2011 | 1 | 3 |
| 2012 | 2 | 2 |
| 2013 | 5 | 2 |
| 2014 | 1 | 6 |
| 2015 | 6 | 8 |
| 2016 | 4 | 7 |
| 2017 | 6 | 5 |
| 2018 | 3 | 9 |
| 2019 | 9 | 6 |
| 2020 | 14 | 15 |
| 2021 | 12 | 15 |
| 2022 | 17 | 9 |
| 2023 | 7 | 16 |
| 2024 | 11 | 10 |
| 2025 | 12 | 9 |
| 2026 | 6 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Drive control device for rotating work machine and rotating work machine provided with same16 Jun 2026US 12,655,607 B2Kobelco Construction Machinery Co., Ltd.
- Hydraulic machine swing system with anti-drift9 Jun 2026US 12,650,003 B2Caterpillar Inc.
- Volume follow supply9 Jun 2026US 12,650,135 B2Hydac Fluidtechnik GmbH
- Method for diagnosing a state of deterioration of an uplock26 May 2026US 12,637,204 B2Safran Landing Systems
- Variable relief circuit19 May 2026US 12,631,201 B2HUSCO International, Inc.
- Hydraulic machine swing system with anti-drift29 Jan 2026US 2026/0028797 A1Caterpillar Inc.
- Volume Follow Supply4 Dec 2025US 2025/0369458 A1Hydac Fluidtechnik GmbH
- Drive control device for rotating work machine and rotating work machine provided with same25 Sep 2025US 2025/0297454 A1Kobelco Construction Machinery Co., Ltd.
- Wing force management system for an agricultural implement14 Aug 2025US 2025/0255209 A1CNH Industrial America LLC
- Electro-hydraulic actuator and brake device14 Aug 2025US 2025/0256695 A1Ican Company Ltd.
Most cited
By later US patents
- Hydraulic system providing down force on a work implement109US 6,460,623 B1Caterpillar Inc. · 2002
- Cartridge valve having solenoid bypass and integral relief valve94US 5,992,450 AEaton Corporation · 1999
- Hydraulic system, manifold and volumetric compensator73US 6,519,939 B1M-Mac Actuators, Inc. · 2003
- Electro-hydraulic actuator system52US 7,191,593 B1Northrop Grumman Corporation · 2007
- Hydraulic drive and steering systems for a vehicle48US 5,427,195 AInt. Silvatech Ltd. · 1995