F15B 2211/323
The biasing means being adjustable
Official title: the biasing means being adjustable
F15B2211/323 (The biasing means being adjustable) appears on 9 US grants and 7 published applications in this corpus.
Search patents in F15B- Granted patents
- 9
- Published applications
- 7
- Assignees
- 7
- Inventors
- 18
- Latest grant
- 5 Nov 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 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 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 1 |
| 2017 | 1 | 1 |
| 2018 | 0 | 0 |
| 2019 | 2 | 1 |
| 2020 | 0 | 1 |
| 2021 | 1 | 0 |
| 2022 | 1 | 0 |
| 2023 | 0 | 1 |
| 2024 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Hydraulic machine5 Nov 2024US 12,135,046 B2Volvo Construction Equipment AB
- Directly-controlled hydraulic directional valve26 Apr 2022US 11,313,389 B2Robert Bosch GmbH
- Servohydraulic drive25 May 2021US 11,015,620 B2Robert Bosch GmbH
- Apparatus to bias spool valves using supply pressure17 Dec 2019US 10,508,747 B2Fisher Controls International LLC
- Hydraulic drive system for working machine including track device of crawler type14 May 2019US 10,287,751 B2Hitachi Construction Machinery Tierra Co., Ltd.
- Hydraulic machine22 Jun 2023US 2023/0193931 A1Volvo Construction Equipment AB
- Servohydraulic Drive30 Apr 2020US 2020/0132091 A1Robert Bosch GmbH
- Directly-Controlled Hydraulic Directional Valve12 Dec 2019US 2019/0376613 A1Robert Bosch GmbH
- Apparatus to bias spool valves using supply pressure29 Jun 2017US 2017/0184208 A1Fisher Controls International LLC
- Hydraulic drive system for working machine including track device of crawler type29 Dec 2016US 2016/0376769 A1Hitachi Construction Machinery Co., Ltd.
Most cited
By later US patents
- Seat-style pressure-relief valve4US 5,564,468 ARobert Bosch GmbH · 1996
- Control device for hydraulic servomechanisms3US 4,285,267 ABendiberica S.A. · 1981
- Hydraulic drive system for working machine including track device of crawler type2US 10,287,751 B2Hitachi Construction Machinery Tierra Co., Ltd. · 2019
- Pressure control valve2US 5,337,778 ADanfoss A/S · 1994
- Hydraulic machine1US 12,135,046 B2Volvo Construction Equipment AB · 2024