B60G 2500/20
Spring action or springs
B60G2500/20 (Spring action or springs) appears on 1,275 US grants and 1,049 published applications in this corpus.
Search patents in B60G- Granted patents
- 1,275
- Published applications
- 1,049
- Assignees
- 489
- Inventors
- 2,196
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 5 | 0 |
| 1980 | 3 | 0 |
| 1981 | 3 | 0 |
| 1982 | 7 | 0 |
| 1983 | 6 | 0 |
| 1984 | 10 | 0 |
| 1985 | 6 | 0 |
| 1986 | 11 | 0 |
| 1987 | 19 | 0 |
| 1988 | 10 | 0 |
| 1989 | 34 | 0 |
| 1990 | 19 | 0 |
| 1991 | 35 | 0 |
| 1992 | 29 | 0 |
| 1993 | 24 | 0 |
| 1994 | 20 | 0 |
| 1995 | 18 | 0 |
| 1996 | 24 | 0 |
| 1997 | 18 | 0 |
| 1998 | 20 | 0 |
| 1999 | 21 | 0 |
| 2000 | 32 | 0 |
| 2001 | 40 | 14 |
| 2002 | 28 | 34 |
| 2003 | 31 | 48 |
| 2004 | 31 | 31 |
| 2005 | 27 | 46 |
| 2006 | 18 | 33 |
| 2007 | 26 | 38 |
| 2008 | 27 | 32 |
| 2009 | 23 | 43 |
| 2010 | 23 | 39 |
| 2011 | 36 | 13 |
| 2012 | 29 | 27 |
| 2013 | 25 | 35 |
| 2014 | 28 | 32 |
| 2015 | 33 | 39 |
| 2016 | 33 | 29 |
| 2017 | 41 | 44 |
| 2018 | 29 | 56 |
| 2019 | 52 | 58 |
| 2020 | 43 | 58 |
| 2021 | 46 | 53 |
| 2022 | 43 | 57 |
| 2023 | 44 | 55 |
| 2024 | 61 | 57 |
| 2025 | 57 | 45 |
| 2026 | 25 | 33 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B60G 2500/201Air spring system typeIndexing code211
- B60G 2500/22Spring constantIndexing code204
- B60G 2500/204Pressure regulating valves for air-springsIndexing code175
- B60G 2500/202Height or leveling valve for air-springsIndexing code165
- B60G 2500/203Distributor valve units comprising several elementsIndexing code124
- B60G 2500/205Air-compressor operationIndexing code116
- B60G 2500/206Variable pressure accumulators for hydropneumatic suspensionsIndexing code71
Recent patents
- Air management system for vehicle29 Sep 2026US 12,746,793 B2Beijingwest Industries Co., Ltd.
- Adaptive damping nonlinear spring-variable damping system and mobile platform system1 Sep 2026US 12,722,439 B2South China University of Technology
- Air spring operation18 Aug 2026US 12,709,128 B2Jaguar Land Rover Limited
- Self-pressurizing air suspension system18 Aug 2026US 12,709,129 B1GM Global Technology Operations LLC
- Stabilizer for vehicle11 Aug 2026US 12,703,221 B2
- Automatic Anti-Roll Bar Control System8 Oct 2026US 2026/0307448 A1
- Suspension system for an automotive vehicle24 Sep 2026US 2026/0285117 A1Domin Fluid Power Limited
- Pneumatic system and compressed air supply system with bypass line and switching and control actuator system in the venting path and method10 Sep 2026US 2026/0264466 A1Zf Cv Systems Europe BV
- Gas Spring End Member Assemblies as well as Gas Spring Assemblies and Methods of Manufacture Including Same13 Aug 2026US 2026/0235184 A1Firestone Industrial Products Company, LLC
- Compressed air generation apparatus, air spring arrangement, and cab mounting system30 Jul 2026US 2026/0217075 A1ZF Friedrichshafen AG
Most cited
By later US patents
- Modular Independent coil spring suspension242US 5,538,274 AOshkosh Truck Corporation · 1996
- Ride-height control system217US 8,333,390 B2Oshkosh Corporation · 2012
- Hydrapneumatic suspension unit and valving structure195US 4,153,237 A1979
- Gas spring control system and method193US 8,459,619 B2Oshkosh Corporation · 2013
- Shock absorber spring adjuster190US 5,044,614 A1991