F15B 2211/413
The positions being continuously variable
Official title: the positions being continuously variable, e.g. as realised by proportional valves
F15B2211/413 (The positions being continuously variable) appears on 162 US grants and 130 published applications in this corpus.
Search patents in F15B- Granted patents
- 162
- Published applications
- 130
- Assignees
- 106
- Inventors
- 363
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 4 | 0 |
| 1994 | 4 | 0 |
| 1995 | 4 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 4 | 0 |
| 2000 | 4 | 0 |
| 2001 | 7 | 1 |
| 2002 | 1 | 1 |
| 2003 | 2 | 5 |
| 2004 | 4 | 2 |
| 2005 | 2 | 5 |
| 2006 | 2 | 6 |
| 2007 | 8 | 5 |
| 2008 | 2 | 4 |
| 2009 | 2 | 3 |
| 2010 | 4 | 4 |
| 2011 | 1 | 4 |
| 2012 | 5 | 3 |
| 2013 | 2 | 3 |
| 2014 | 3 | 1 |
| 2015 | 1 | 3 |
| 2016 | 2 | 4 |
| 2017 | 2 | 3 |
| 2018 | 2 | 5 |
| 2019 | 6 | 7 |
| 2020 | 7 | 4 |
| 2021 | 4 | 9 |
| 2022 | 3 | 9 |
| 2023 | 9 | 13 |
| 2024 | 5 | 12 |
| 2025 | 17 | 9 |
| 2026 | 11 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Pilot solenoid control valve and hydraulic control system using same49US 5,878,647 AHUSCO International, Inc. · 1999
- Proportional seat-type 4-way valve47US 5,211,196 AHydrolux S.a r.l. · 1993
- Hydraulic control device47US 5,259,293 AHeilmeier & Weinlein Fabrik fuer Oel-Hydraulik GmbH & Co. KG · 1993
- Control device for hydraulically-operated equipment42US 6,308,516 B1Komatsu Ltd. · 2001
- Hydraulic drive system39US 5,680,760 ACaterpillar Inc. · 1997