F16F 9/3257
In twin-tube type devices
Official title: {in twin-tube type devices}
F16F9/3257 (In twin-tube type devices) appears on 113 US grants and 150 published applications in this corpus.
Search patents in F16F- Granted patents
- 113
- Published applications
- 150
- Assignees
- 47
- Inventors
- 253
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 1 | 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 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 2 |
| 2003 | 0 | 4 |
| 2004 | 3 | 0 |
| 2005 | 4 | 3 |
| 2006 | 1 | 2 |
| 2007 | 0 | 1 |
| 2008 | 1 | 3 |
| 2009 | 2 | 0 |
| 2010 | 2 | 2 |
| 2011 | 0 | 2 |
| 2012 | 1 | 0 |
| 2013 | 2 | 0 |
| 2014 | 1 | 5 |
| 2015 | 0 | 3 |
| 2016 | 4 | 5 |
| 2017 | 4 | 17 |
| 2018 | 12 | 14 |
| 2019 | 8 | 6 |
| 2020 | 6 | 10 |
| 2021 | 9 | 24 |
| 2022 | 11 | 11 |
| 2023 | 12 | 8 |
| 2024 | 15 | 12 |
| 2025 | 7 | 9 |
| 2026 | 3 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Vibration damper for a vehicle1 Sep 2026US 12,723,635 B2thyssenkrupp AG
- Damping force controlling shock absorber21 Apr 2026US 12,607,245 B2Hl Mando Corporation
- Vibration damper having two adjustable damping valve devices20 Jan 2026US 12,529,408 B2ZF Friedrichshafen AG
- Twin tube shock with adjustable pressure regulation23 Dec 2025US 12,504,055 B2Fox Factory, Inc.
- Adjustable bypass shock absorber18 Nov 2025US 12,472,793 B2
- Concrete vibrator system20 Aug 2026US 2026/0243094 A1Milwaukee Electric Tool Corporation
- Hydraulic damper30 Jul 2026US 2026/0218773 A1Beijingwest Industries Co., Ltd.
- Hydraulic Connector for Connecting an Inner Tube to a Side Solenoid Valve and Damper System25 Jun 2026US 2026/0177129 A1Kyb Europe GmbH, Sucursal En Navarra
- Hydraulic Suspension Dampers with Control Valve Assembly and Regulating Controls18 Jun 2026US 2026/0168557 A1
- Pocket tube and shock absorber including the same11 Jun 2026US 2026/0160309 A1Hl Mando Corporation
Most cited
By later US patents
- Integrated and self-contained suspension assembly having an on-the-fly adjustable air spring139US 7,703,585 B2Fox Factory, Inc. · 2010
- Steer-sensitive variable damper and method utilizing a ring valve53US 5,150,775 AGeneral Motors Corporation · 1992
- Integrated and self-contained suspension assembly having an on-the-fly adjustable air spring29US 7,641,028 B2Fox Factory, Inc. · 2010
- Method of manufacturing a suspension damper28US 5,577,579 AGeneral Motors Corporation · 1996
- Energy management damper22US 4,337,849 AThe United States of America as represented by the Secretary of the Army · 1982