F16F 1/22
With means for modifying the spring characteristic
Official title: with means for modifying the spring characteristic {(fluid regulation of leaf spring characteristics in vehicle suspensions B60G17/0275)}
F16F1/22 (With means for modifying the spring characteristic) appears on 56 US grants and 45 published applications in this corpus.
Search patents in F16F- Granted patents
- 56
- Published applications
- 45
- Assignees
- 46
- Inventors
- 143
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 4 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 5 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 1 |
| 2004 | 1 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 4 |
| 2008 | 1 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 1 |
| 2014 | 1 | 2 |
| 2015 | 0 | 2 |
| 2016 | 1 | 2 |
| 2017 | 2 | 2 |
| 2018 | 0 | 8 |
| 2019 | 6 | 5 |
| 2020 | 5 | 3 |
| 2021 | 4 | 0 |
| 2022 | 1 | 3 |
| 2023 | 1 | 1 |
| 2024 | 2 | 1 |
| 2025 | 2 | 3 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Adjustable blade load mechanism for cantilever beam wiper arm assembly5 May 2026US 12,617,374 B2Rosemount Aerospace Inc.
- Suspension for vehicle7 Oct 2025US 12,434,521 B2Hyundai Mobis Co., Ltd.
- Spacer element system for an automotive suspension system4 Feb 2025US 12,214,637 B2
- Tunable static balancer in particular for devices with compliant mechanism12 Mar 2024US 11,926,046 B2Reon Ehf.
- Device comprising a set of vibration absorbers and vehicle equipped with such a device30 Jan 2024US 11,885,391 B2Centre National De La Recherche Scientifque
- Structure and method for manufacturing the same2 Jul 2026US 2026/0185578 A1Nature Architects Inc.
- Method and apparatus for increasing spring rate of linear springs16 Apr 2026US 2026/0104079 A1Rtx Corporation
- Spring mechanism20 Nov 2025US 2025/0354598 A1Panasonic Holdings Corporation
- Adjustable blade load mechanism for cantilever beam wiper arm assembly2 Oct 2025US 2025/0304015 A1Rosemount Aerospace Inc.
- Suspension for vehicle21 Aug 2025US 2025/0262902 A1Hyundai Mobis Co., Ltd.
Most cited
By later US patents
- Powered wheelchair with a detachable power drive assembly110US 5,351,774 AQuickie Designs Inc. · 1994
- Structure for attaching spring91US 7,434,879 B2Kokuyo Furniture Co., Ltd. · 2008
- Powered wheelchair with a detachable power drive assembly83US 5,531,284 AQuickie Designs Inc. · 1996
- Adjustable stiffness leaf spring actuators40US 7,527,253 B2Arizona Board of Regents · 2009
- Load leveling attachment for leaf spring suspension and method therefor38US 5,172,930 A1992