F16F 9/20
With the piston-rod extending through both ends of the cylinder
Official title: with the piston-rod extending through both ends of the cylinder {, e.g. constant-volume dampers}
F16F9/20 (With the piston-rod extending through both ends of the cylinder) appears on 153 US grants and 138 published applications in this corpus.
Search patents in F16F- Granted patents
- 153
- Published applications
- 138
- Assignees
- 107
- Inventors
- 299
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 5 | 0 |
| 1989 | 5 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 3 | 0 |
| 2000 | 6 | 0 |
| 2001 | 1 | 1 |
| 2002 | 2 | 0 |
| 2003 | 1 | 3 |
| 2004 | 3 | 4 |
| 2005 | 1 | 4 |
| 2006 | 3 | 7 |
| 2007 | 4 | 3 |
| 2008 | 2 | 3 |
| 2009 | 3 | 7 |
| 2010 | 1 | 10 |
| 2011 | 1 | 2 |
| 2012 | 8 | 7 |
| 2013 | 3 | 5 |
| 2014 | 7 | 7 |
| 2015 | 7 | 8 |
| 2016 | 7 | 5 |
| 2017 | 4 | 7 |
| 2018 | 4 | 15 |
| 2019 | 8 | 11 |
| 2020 | 9 | 5 |
| 2021 | 9 | 6 |
| 2022 | 7 | 4 |
| 2023 | 3 | 5 |
| 2024 | 4 | 4 |
| 2025 | 2 | 2 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Electronically controlled sway bar damping link15 Sep 2026US 12,734,858 B2Fox Factory, Inc.
- Landing gear main fitting with integral shock absorber14 Jul 2026US 12,679,530 B2Safran Landing Systems Canada Inc.
- Self-sustaining shimmy damper system for landing gear shock strut assemblies12 Aug 2025US 12,384,530 B2Goodrich Corporation
- Integrated energy generating damper1 Apr 2025US 12,264,656 B2ClearMotion, Inc.
- Method of controlling pressure variation in working fluids in a fluid circuit undergoing working pressure variations17 Sep 2024US 12,092,186 B2Holmes Solutions Limited Partnership
- Linear damper and steering device27 Aug 2026US 2026/0249907 A1Somic Management Holdings Inc.
- Passive vibration isolator13 Aug 2026US 2026/0233840 A1Point Blank Enterprises, Inc.
- Suspension Arrangement and Method for Controlling a Suspension Arrangement11 Jun 2026US 2026/0158844 A1Hasse & Wrede GmbH
- Telescopic Suspension Fork Comprising Two Telescopic Fork Legs8 May 2025US 2025/0145244 A1Ktm AG
- Electronically controlled sway bar damping link13 Mar 2025US 2025/0083489 A1Fox Factory, Inc.
Most cited
By later US patents
- Adjustable valve and vibration damper utilizing same157US 6,131,709 ALord Corporation · 2000
- Apparatus for damping courses of movement123US 4,786,034 ARobert Bosch GmbH · 1988
- Vibration attenuating method utilizing continuously variable semiactive damper111US 4,887,699 ALord Corporation · 1989
- Valve mechanism for damping system110US 6,105,987 ARockshox, Inc. · 2000
- Measure while drilling system73US 4,914,637 APositec Drilling Controls (Canada) Ltd. · 1990