F15B 2211/31582
Having multiple pressure sources and a single output member
Official title: having multiple pressure sources and a single output member
F15B2211/31582 (Having multiple pressure sources and a single output member) appears on 86 US grants and 83 published applications in this corpus.
Search patents in F15B- Granted patents
- 86
- Published applications
- 83
- Assignees
- 67
- Inventors
- 261
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 3 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 1 |
| 2002 | 1 | 0 |
| 2003 | 1 | 1 |
| 2004 | 1 | 2 |
| 2005 | 3 | 2 |
| 2006 | 1 | 2 |
| 2007 | 3 | 3 |
| 2008 | 0 | 0 |
| 2009 | 2 | 1 |
| 2010 | 0 | 3 |
| 2011 | 1 | 1 |
| 2012 | 2 | 1 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 2 | 4 |
| 2016 | 0 | 5 |
| 2017 | 2 | 3 |
| 2018 | 6 | 7 |
| 2019 | 5 | 11 |
| 2020 | 5 | 6 |
| 2021 | 14 | 6 |
| 2022 | 12 | 6 |
| 2023 | 2 | 6 |
| 2024 | 6 | 6 |
| 2025 | 5 | 3 |
| 2026 | 3 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Hydraulic system for work machine, and work machine15 Sep 2026US RE51,031 E1Kubota Corporation
- 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 system for work machine, work machine, and method for controlling hydraulic system28 Apr 2026US 12,612,757 B2Komatsu Ltd.
- Shovel30 Sep 2025US 12,428,805 B2Sumitomo Construction Machinery Co., Ltd.
- Counter pressure valve arrangement10 Jun 2025US 12,326,741 B2Parker Hannifin EMEA S.à.r.l.
- Hydraulic valve apparatus2 Jul 2026US 2026/0185545 A1Komatsu Ltd.
- Hybrid architecture for smart power management on off-highway machines18 Jun 2026US 2026/0168211 A1Deere & Company
- Work Machine2 Apr 2026US 2026/0092431 A1Hitachi Construction Machinery Co., Ltd.
- Hydraulic drive device25 Dec 2025US 2025/0389104 A1Kawasaki Jukogyo Kabushiki Kaisha
- Drive control device for rotating work machine and rotating work machine provided with same25 Sep 2025US 2025/0297454 A1Kobelco Construction Machinery Co., Ltd.
Most cited
By later US patents
- Electro-hydraulic actuator system52US 7,191,593 B1Northrop Grumman Corporation · 2007
- Hydraulic system for recovering potential energy28US 7,269,944 B2Caterpillar Inc. · 2007
- Flow sensing and control apparatus25US 3,952,510 ACaterpillar Tractor Co. · 1976
- Load sensitive hydraulic system25US 4,034,563 AInternational Harvester Company · 1977
- Energy conversion system22US 5,878,569 ACaterpillar Inc. · 1999