F16F 9/3214
Of pistons
Official title: {of pistons (F16F9/0227 and F16F9/36 take precedence; throttling passages in or on piston body F16F9/3405)}
F16F9/3214 (Of pistons) appears on 283 US grants and 310 published applications in this corpus.
Search patents in F16F- Granted patents
- 283
- Published applications
- 310
- Assignees
- 159
- Inventors
- 583
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 5 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 0 | 0 |
| 1995 | 3 | 0 |
| 1996 | 5 | 0 |
| 1997 | 2 | 0 |
| 1998 | 7 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 8 | 4 |
| 2002 | 9 | 6 |
| 2003 | 8 | 7 |
| 2004 | 6 | 7 |
| 2005 | 7 | 8 |
| 2006 | 8 | 5 |
| 2007 | 2 | 4 |
| 2008 | 1 | 2 |
| 2009 | 1 | 6 |
| 2010 | 2 | 1 |
| 2011 | 2 | 4 |
| 2012 | 1 | 7 |
| 2013 | 4 | 11 |
| 2014 | 7 | 6 |
| 2015 | 12 | 17 |
| 2016 | 10 | 10 |
| 2017 | 14 | 23 |
| 2018 | 11 | 26 |
| 2019 | 19 | 27 |
| 2020 | 25 | 21 |
| 2021 | 18 | 20 |
| 2022 | 17 | 19 |
| 2023 | 20 | 20 |
| 2024 | 9 | 18 |
| 2025 | 13 | 17 |
| 2026 | 8 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Multi-fit encapsulated oscillation dampener for automotive automatic transmissions6 Oct 2026US 12,753,833 B2Superior Transmission Parts, Inc.
- Internal floating piston8 Sep 2026US 12,729,742 B2Fox Factory, Inc.
- Damper assembly5 May 2026US 12,618,446 B2Oshkosh Defense, LLC
- Piston for shock absorber with optimized bleed range and tuneability5 May 2026US 12,618,448 B2Advanced Suspension Technology LLC
- Sealing device and damper for hydraulic equipment7 Apr 2026US 12,595,834 B2KYB Corporation
- Shock-absorber cylinder having an adjustable length and/or shock-absorbing effect1 Oct 2026US 2026/0298306 A1Airbus Operations GmbH
- Damper assembly17 Sep 2026US 2026/0276050 A1Oshkosh Defense, LLC
- Progressive end-stop control valves for vibration dampers30 Jul 2026US 2026/0218772 A1thyssenkrupp AG
- Hydraulic damper30 Jul 2026US 2026/0218773 A1Beijingwest Industries Co., Ltd.
- Variable-speed buffer oil cylinder2 Jul 2026US 2026/0185585 A1Guangdong Zhaogao Metal Technology Co., Ltd.
Most cited
By later US patents
- Controllable vibration apparatus131US 5,878,851 ALord Corporation · 1999
- Controllable damping force hydraulic shock absorber113US 6,782,980 B2Tokico Ltd. · 2004
- Damper assembly111US 9,127,738 B2Oshkosh Defense, LLC · 2015
- Damper assembly87US 9,765,841 B2Oshkosh Defense, LLC · 2017
- Damper81US 7,931,132 B2Robert Bosch GmbH · 2011