F16F 9/08
Where gas is in a chamber with a flexible wall
Official title: {where gas is} in a chamber with a flexible wall {(pressurised fluid system accumulators per se F15B1/04)}
F16F9/08 (Where gas is in a chamber with a flexible wall) appears on 355 US grants and 221 published applications in this corpus.
Search patents in F16F- Granted patents
- 355
- Published applications
- 221
- Assignees
- 169
- Inventors
- 501
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 3 | 0 |
| 1978 | 6 | 0 |
| 1979 | 2 | 0 |
| 1980 | 4 | 0 |
| 1981 | 2 | 0 |
| 1982 | 4 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 6 | 0 |
| 1986 | 7 | 0 |
| 1987 | 25 | 0 |
| 1988 | 8 | 0 |
| 1989 | 12 | 0 |
| 1990 | 11 | 0 |
| 1991 | 9 | 0 |
| 1992 | 8 | 0 |
| 1993 | 2 | 0 |
| 1994 | 4 | 0 |
| 1995 | 6 | 0 |
| 1996 | 5 | 0 |
| 1997 | 5 | 0 |
| 1998 | 5 | 0 |
| 1999 | 5 | 0 |
| 2000 | 6 | 0 |
| 2001 | 8 | 3 |
| 2002 | 9 | 11 |
| 2003 | 5 | 13 |
| 2004 | 9 | 8 |
| 2005 | 7 | 7 |
| 2006 | 8 | 16 |
| 2007 | 3 | 8 |
| 2008 | 4 | 13 |
| 2009 | 10 | 6 |
| 2010 | 6 | 5 |
| 2011 | 5 | 4 |
| 2012 | 7 | 4 |
| 2013 | 8 | 7 |
| 2014 | 5 | 6 |
| 2015 | 6 | 10 |
| 2016 | 5 | 8 |
| 2017 | 8 | 9 |
| 2018 | 8 | 12 |
| 2019 | 13 | 13 |
| 2020 | 9 | 9 |
| 2021 | 8 | 13 |
| 2022 | 7 | 14 |
| 2023 | 17 | 7 |
| 2024 | 9 | 6 |
| 2025 | 8 | 5 |
| 2026 | 3 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F16F 9/096Comprising a hydropneumatic accumulator of the membrane type provided on the upper123
- F16F 9/084Comprising a gas spring contained within a flexible wall, the wall not121
- F16F 9/092Comprising a gas spring with a flexible wall provided between the tubes42
- F16F 9/088Comprising a gas spring with a flexible wall provided within the cylinder38
- F16F 9/082Characterised by the hydropneumatic accumulator15
- F16F 9/081Being of the fluid displacement type, i.e. the piston not comprising damping8
Recent patents
- Gas spring assembly for a vehicle suspension system11 Aug 2026US 12,703,219 B1Oshkosh Defense, LLC
- Suspension system for an automotive vehicle28 Jul 2026US 12,691,719 B2Domin Fluid Power Limited
- Synthetic elastomeric air spring without reinforcing fibers17 Mar 2026US 12,576,680 B2ILJIN USA Corporation
- Strut with integrated air spring2 Dec 2025US 12,485,715 B2Rivian IP Holdings, LLC
- Self-contained airshock assembly25 Nov 2025US 12,479,254 B2Fox Factory, Inc.
- Suspension system for an automotive vehicle24 Sep 2026US 2026/0285117 A1Domin Fluid Power Limited
- Air spring for vehicle13 Aug 2026US 2026/0235182 A1Iljin Co., Ltd.
- Air spring for vehicle13 Aug 2026US 2026/0235183 A1Iljin Co., Ltd.
- Damping cylinder assembly7 May 2026US 2026/0126093 A1BüMach Engineering International B. V.
- Diaphragm and self-levelizer damper including the same25 Dec 2025US 2025/0389311 A1Hl Mando Corporation
Most cited
By later US patents
- Inertia valve shock absorber199US 7,128,192 B2Fox Factory, Inc. · 2006
- Gas spring assembly for a vehicle suspension system197US 8,764,029 B2Oshkosh Corporation · 2014
- Gas spring assembly for a vehicle suspension192US 8,465,025 B2Oshkosh Corporation · 2013
- Gas spring assembly for a vehicle suspension system184US 8,991,834 B2Oshkosh Defense, LLC · 2015
- Adjustable shock absorbers164US 4,958,706 A1990