F15B 2211/3133
Regenerative position connecting the working ports or connecting the working ports to
Official title: Regenerative position connecting the working ports or connecting the working ports to the pump, e.g. for high-speed approach stroke
F15B2211/3133 (Regenerative position connecting the working ports or connecting the working ports to) appears on 87 US grants and 93 published applications in this corpus.
Search patents in F15B- Granted patents
- 87
- Published applications
- 93
- Assignees
- 58
- Inventors
- 182
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 1 |
| 2003 | 0 | 2 |
| 2004 | 2 | 2 |
| 2005 | 3 | 1 |
| 2006 | 1 | 2 |
| 2007 | 1 | 3 |
| 2008 | 1 | 1 |
| 2009 | 3 | 5 |
| 2010 | 0 | 1 |
| 2011 | 0 | 2 |
| 2012 | 4 | 0 |
| 2013 | 0 | 6 |
| 2014 | 3 | 3 |
| 2015 | 2 | 3 |
| 2016 | 3 | 4 |
| 2017 | 3 | 4 |
| 2018 | 5 | 5 |
| 2019 | 1 | 6 |
| 2020 | 5 | 6 |
| 2021 | 10 | 9 |
| 2022 | 6 | 8 |
| 2023 | 5 | 8 |
| 2024 | 8 | 3 |
| 2025 | 5 | 5 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Load sensing hydraulic circuit having power matching means33US 4,024,710 AKoehring Company · 1977
- Work machine33US 7,596,893 B2Caterpillar Japan Ltd. · 2009
- Construction machinery30US 6,851,207 B2Kobelco Construction Machinery Co., Ltd. · 2005
- Hydraulic valve means25US 4,662,601 A1987
- Hydraulic valve arrangement25US 7,243,591 B2Sauer-Danfoss ApS · 2007