F16F 9/3221
Of piston rods
Official title: {of piston rods}
F16F9/3221 (Of piston rods) appears on 131 US grants and 160 published applications in this corpus.
Search patents in F16F- Granted patents
- 131
- Published applications
- 160
- Assignees
- 84
- Inventors
- 314
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 1 |
| 2002 | 1 | 2 |
| 2003 | 3 | 3 |
| 2004 | 1 | 5 |
| 2005 | 2 | 2 |
| 2006 | 2 | 8 |
| 2007 | 4 | 3 |
| 2008 | 1 | 3 |
| 2009 | 1 | 1 |
| 2010 | 4 | 4 |
| 2011 | 3 | 2 |
| 2012 | 2 | 6 |
| 2013 | 7 | 7 |
| 2014 | 3 | 5 |
| 2015 | 5 | 5 |
| 2016 | 3 | 3 |
| 2017 | 4 | 8 |
| 2018 | 6 | 9 |
| 2019 | 8 | 6 |
| 2020 | 8 | 11 |
| 2021 | 5 | 14 |
| 2022 | 9 | 18 |
| 2023 | 10 | 12 |
| 2024 | 12 | 8 |
| 2025 | 8 | 6 |
| 2026 | 9 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for manufacturing a diaphragm holder for an oleo-pneumatic shock absorber25 Aug 2026US 12,715,575 B2Safran
- Landing gear main fitting with integral shock absorber14 Jul 2026US 12,679,530 B2Safran Landing Systems Canada Inc.
- Shock absorber for automobile with adaptive damping14 Jul 2026US 12,680,591 B2Baoding Dongli Machinery Co., Ltd
- Joined body, method of manufacturing joined body, and shock absorber7 Jul 2026US 12,674,499 B2Hitachi Astemo, Ltd.
- Frequency sensitive shock absorber12 May 2026US 12,624,740 B2Hl Mando Corporation
- Method of manufacturing piston rod25 Jun 2026US 2026/0175346 A1Astemo, Ltd.
- Magnetorheological damper capable of realizing independent linear and rotational force feedback11 Jun 2026US 2026/0160312 A1Southeast University
- Shock absorber and method for manufacturing shock absorber28 May 2026US 2026/0146357 A1Hitachi Astemo, Ltd.
- Extractable double-tube gas spring21 May 2026US 2026/0139722 A1Yili Industrial U.S. Co., Ltd.
- Plated member and manufacturing method thereof26 Mar 2026US 2026/0085439 A1Hitachi Astemo, Ltd.
Most cited
By later US patents
- Bicycle fork cartridge assembly255US 6,592,136 B2Fox Factory, Inc. · 2003
- Bicycle fork having lock-out, blow-off, and adjustable blow-off threshold163US 7,163,222 B2Fox Factory, Inc. · 2007
- Bicycle user interface system and method of operation thereof120US 8,121,757 B2Cannondale Bicycle Corporation · 2012
- Bicycle seat post structure117US 9,126,647 B2Taiwan Hodaka Industrial Co., Ltd. · 2015
- Systems of recording piston rod position information in a magnetic layer on a piston rod63US 7,034,527 B2SRI International · 2006