F16F 9/18
With a closed cylinder and a piston separating two or more working
Official title: with a closed cylinder and a piston separating two or more working spaces therein
F16F9/18 (With a closed cylinder and a piston separating two or more working) appears on 1,045 US grants and 1,196 published applications in this corpus.
Search patents in F16F- Granted patents
- 1,045
- Published applications
- 1,196
- Assignees
- 360
- Inventors
- 1,567
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 3 | 0 |
| 1978 | 4 | 0 |
| 1979 | 4 | 0 |
| 1980 | 4 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 3 | 0 |
| 1988 | 9 | 0 |
| 1989 | 5 | 0 |
| 1990 | 3 | 0 |
| 1991 | 5 | 0 |
| 1992 | 4 | 0 |
| 1993 | 4 | 0 |
| 1994 | 6 | 0 |
| 1995 | 6 | 0 |
| 1996 | 8 | 0 |
| 1997 | 8 | 0 |
| 1998 | 1 | 0 |
| 1999 | 7 | 0 |
| 2000 | 10 | 0 |
| 2001 | 11 | 2 |
| 2002 | 4 | 8 |
| 2003 | 8 | 8 |
| 2004 | 6 | 7 |
| 2005 | 3 | 7 |
| 2006 | 6 | 11 |
| 2007 | 5 | 9 |
| 2008 | 6 | 5 |
| 2009 | 4 | 23 |
| 2010 | 3 | 26 |
| 2011 | 1 | 13 |
| 2012 | 18 | 22 |
| 2013 | 22 | 31 |
| 2014 | 34 | 59 |
| 2015 | 37 | 64 |
| 2016 | 45 | 75 |
| 2017 | 62 | 80 |
| 2018 | 70 | 94 |
| 2019 | 66 | 92 |
| 2020 | 76 | 89 |
| 2021 | 82 | 100 |
| 2022 | 72 | 93 |
| 2023 | 82 | 102 |
| 2024 | 86 | 81 |
| 2025 | 69 | 50 |
| 2026 | 56 | 45 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Vibration dampers for a vehicle22 Sep 2026US 12,742,484 B2thyssenkrupp AG
- Systems for damping a solar photovoltaic array tracker22 Sep 2026US 12,744,492 B2FTC Solar, Inc.
- Electronically controlled sway bar damping link15 Sep 2026US 12,734,858 B2Fox Factory, Inc.
- Shock absorber8 Sep 2026US 12,729,741 B2Hitachi Astemo, Ltd.
- Vibration damper for a vehicle1 Sep 2026US 12,723,635 B2thyssenkrupp AG
- Vibration damper, motor vehicle and method for filling8 Oct 2026US 2026/0309202 A1thyssenkrupp AG
- Low-Friction Wear Surfaces for Sediment Filtration System Hydraulic Damper17 Sep 2026US 2026/0276051 A1LiquiTech, Inc.
- Shock absorbing device and suspension device17 Sep 2026US 2026/0276053 A1Astemo, Ltd.
- Shock absorber and damping force generation mechanism17 Sep 2026US 2026/0276054 A1Hitachi Astemo, Ltd.
- Linear damper and steering device27 Aug 2026US 2026/0249907 A1Somic Management Holdings Inc.
Most cited
By later US patents
- Position dependent damper for a vehicle suspension system193US 8,801,017 B2Oshkosh Corporation · 2014
- Apparatus for damping courses of motion172US 4,936,423 ARobert Bosch GmbH · 1990
- Adjustable valve and vibration damper utilizing same157US 6,131,709 ALord Corporation · 2000
- Position dependent damper for a vehicle suspension system154US 9,291,230 B2Oshkosh Defense, LLC · 2016
- Remotely operated bypass for a suspension damper146US 8,857,580 B2Fox Factory, Inc. · 2014