F15B 2211/522
Actuated by biasing means
Official title: actuated by biasing means, e.g. spring-actuated
F15B2211/522 (Actuated by biasing means) appears on 23 US grants and 23 published applications in this corpus.
Search patents in F15B- Granted patents
- 23
- Published applications
- 23
- Assignees
- 22
- Inventors
- 46
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 1 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 2 | 2 |
| 2020 | 2 | 1 |
| 2021 | 1 | 5 |
| 2022 | 3 | 0 |
| 2023 | 2 | 1 |
| 2024 | 2 | 7 |
| 2025 | 5 | 2 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Hydraulic control system and method with electro-proportional pressure valve and integral check5 May 2026US 12,618,424 B2HydraForce, Inc.
- Mobile machine and method20 Jan 2026US 12,529,388 B2AGCO International GmbH
- Pump control shock absorber11 Nov 2025US 12,467,549 B2Caterpillar Global Mining LLC
- Load-controlled hydraulic supply for an attachment attached to an agricultural tractor8 Jul 2025US 12,352,292 B2Deere & Company
- Counter pressure valve arrangement10 Jun 2025US 12,326,741 B2Parker Hannifin EMEA S.à.r.l.
- Wing force management system for an agricultural implement14 Aug 2025US 2025/0255209 A1CNH Industrial America LLC
- Mobile Machine and Method16 Jan 2025US 2025/0020145 A1AGCO International GmbH
- Pump control shock absorber7 Nov 2024US 2024/0369078 A1Caterpillar Global Mining LLC
- Hydraulic control system and method with electro-proportional pressure valve and integral check1 Aug 2024US 2024/0255008 A1HydraForce, Inc.
- Systems and Methods for a Return Manifold16 May 2024US 2024/0159256 A1HUSCO International, Inc.
Most cited
By later US patents
- Power transmission6US 3,980,095 A1976
- Inverse proportional pressure relief valve4US 10,775,812 B1Sun Hydraulics, LLC · 2020
- Hydraulic drive system for working machine including track device of crawler type2US 10,287,751 B2Hitachi Construction Machinery Tierra Co., Ltd. · 2019
- Sequence valve with a reverse free flow configuration integrated therewith2US 11,680,589 B1Sun Hydraulics, LLC · 2023
- Counter pressure valve arrangement2US 11,906,986 B2Parker Hannifin EMEA S.à.r.l. · 2024