F16F 9/446
Adjustment of valve bias or pre-stress
Official title: {Adjustment of valve bias or pre-stress (F16F9/443 takes precedence)}
F16F9/446 (Adjustment of valve bias or pre-stress) appears on 91 US grants and 83 published applications in this corpus.
Search patents in F16F- Granted patents
- 91
- Published applications
- 83
- Assignees
- 48
- Inventors
- 134
- Latest grant
- 18 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 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 2 |
| 2006 | 0 | 1 |
| 2007 | 1 | 1 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 1 | 3 |
| 2011 | 0 | 0 |
| 2012 | 1 | 2 |
| 2013 | 1 | 3 |
| 2014 | 1 | 3 |
| 2015 | 2 | 5 |
| 2016 | 7 | 10 |
| 2017 | 8 | 11 |
| 2018 | 4 | 5 |
| 2019 | 9 | 11 |
| 2020 | 8 | 5 |
| 2021 | 11 | 3 |
| 2022 | 1 | 7 |
| 2023 | 7 | 3 |
| 2024 | 4 | 4 |
| 2025 | 4 | 1 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Shock absorber and saddle-type vehicle12 Aug 2025US 12,384,483 B2Hitachi Astemo, Ltd.
- Adjustable shock assembly20 May 2025US 12,305,733 B2Fox Factory, Inc.
- Shock absorber and saddle-type vehicle8 Apr 2025US 12,270,453 B2Hitachi Astemo, Ltd.
- External bypass apparatus for vehicle shock absorbers30 Jul 2026US 2026/0217082 A1Car Sound Exhaust System, Inc.
- Hydraulic Suspension Dampers with Control Valve Assembly and Regulating Controls18 Jun 2026US 2026/0168557 A1
- External bypass apparatus for vehicle shock absorbers30 Apr 2026US 2026/0116137 A1Car Sound Exhaust System, Inc.
- Adjustable shock assembly4 Sep 2025US 2025/0277519 A1Fox Factory, Inc.
- Electronic valve interface14 Nov 2024US 2024/0376955 A1Fox Factory, Inc.
Most cited
By later US patents
- Hydraulic suspension unit186US 5,957,252 A1999
- Fluid regulating device for use with a hydraulic cylinder to obtain a variable shock absorbing effect178US 6,254,067 B1Giant Manufacturing Co., Ltd. · 2001
- Hydraulic shock damper assembly for use in vehicles167US 4,732,244 AWhite Power Production B.V. · 1988
- Strut with controlled variable damping rate125US 4,846,317 ATRW Inc. · 1989
- Oscillation damper98US 5,413,196 AFichtel & Sachs AG · 1995