F15B 2211/455
Control of flow in the feed line, i.e. meter-in control
F15B2211/455 (Control of flow in the feed line, i.e. meter-in control) appears on 351 US grants and 232 published applications in this corpus.
Search patents in F15B- Granted patents
- 351
- Published applications
- 232
- Assignees
- 208
- Inventors
- 671
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 6 | 0 |
| 1978 | 4 | 0 |
| 1979 | 6 | 0 |
| 1980 | 7 | 0 |
| 1981 | 2 | 0 |
| 1982 | 6 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 3 | 0 |
| 1986 | 5 | 0 |
| 1987 | 10 | 0 |
| 1988 | 4 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 9 | 0 |
| 1992 | 2 | 0 |
| 1993 | 4 | 0 |
| 1994 | 9 | 0 |
| 1995 | 8 | 0 |
| 1996 | 5 | 0 |
| 1997 | 4 | 0 |
| 1998 | 8 | 0 |
| 1999 | 5 | 0 |
| 2000 | 7 | 0 |
| 2001 | 17 | 4 |
| 2002 | 10 | 8 |
| 2003 | 11 | 16 |
| 2004 | 10 | 12 |
| 2005 | 10 | 13 |
| 2006 | 8 | 10 |
| 2007 | 8 | 9 |
| 2008 | 9 | 10 |
| 2009 | 2 | 13 |
| 2010 | 4 | 4 |
| 2011 | 7 | 4 |
| 2012 | 3 | 7 |
| 2013 | 10 | 4 |
| 2014 | 3 | 5 |
| 2015 | 5 | 4 |
| 2016 | 4 | 5 |
| 2017 | 3 | 10 |
| 2018 | 7 | 10 |
| 2019 | 12 | 10 |
| 2020 | 14 | 10 |
| 2021 | 16 | 16 |
| 2022 | 9 | 14 |
| 2023 | 12 | 7 |
| 2024 | 7 | 12 |
| 2025 | 12 | 9 |
| 2026 | 9 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Pneumohydraulic pressure intensifier22 Jan 2026US 2026/0022711 A1WS Wieländer + Schill Engineering GmbH & Co. KG
Most cited
By later US patents
- Addressable valve arrays for proportional pressure or flow control88US 6,240,944 B1Honeywell International Inc. · 2001
- Pneumatic-hydraulic actuator system74US 4,335,867 A1982
- Hydraulic valve module63US 4,170,214 ADouble A Products Company · 1979
- Pneumatic actuator with hydraulic control53US 5,058,385 AThe United States of America as represented by the Secretary of the Navy · 1991
- Hydraulic circuit utilizing a compensator pressure selecting value51US 5,209,063 AKabushiki Kaisha Komatsu Seisakusho · 1993