F16F 2228/04
Frequency effects
F16F2228/04 (Frequency effects) appears on 101 US grants and 142 published applications in this corpus.
Search patents in F16F- Granted patents
- 101
- Published applications
- 142
- Assignees
- 97
- Inventors
- 324
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 2 |
| 2006 | 1 | 0 |
| 2007 | 1 | 0 |
| 2008 | 1 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 1 |
| 2014 | 0 | 1 |
| 2015 | 1 | 3 |
| 2016 | 1 | 3 |
| 2017 | 4 | 8 |
| 2018 | 5 | 12 |
| 2019 | 6 | 15 |
| 2020 | 10 | 20 |
| 2021 | 14 | 16 |
| 2022 | 13 | 10 |
| 2023 | 10 | 13 |
| 2024 | 13 | 16 |
| 2025 | 9 | 14 |
| 2026 | 7 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Systems and methods for mitigating vibrations15 Sep 2026US 12,736,104 B210x Genomics, Inc.
- Frequency-sensitive shock absorber25 Aug 2026US 12,716,464 B2Hl Mando Corporation
- Frequency-sensitive shock absorber and method of operating same11 Aug 2026US 12,704,166 B2Hl Mando Corporation
- Vibration control device and frequency-sensitive shock absorber having the same21 Jul 2026US 12,687,214 B2Hl Mando Corporation
- Frequency sensitive shock absorber12 May 2026US 12,624,740 B2Hl Mando Corporation
- Resonance reducing housing for vibration sensor assembly1 Oct 2026US 2026/0298308 A1Blue Oak Co., Ltd.
- Vibroacoustic structure system23 Apr 2026US 2026/0110348 A1Tusas- Turk Havacilik Ve Uzay Sanayii Anonim Sirketi
- Body valve assembly and shock absorber with the same9 Apr 2026US 2026/0098570 A1Hl Mando Corporation
- Vibration absorbing apparatus for a semiconductor manufacturing apparatus19 Feb 2026US 2026/0049644 A1Industry-University Cooperation Foundation Hanyang University
- Hydraulic damper and vehicle5 Feb 2026US 2026/0036183 A1T-Max (Hangzhou) Technology Co., Ltd.
Most cited
By later US patents
- Hydraulic shock absorber138US 5,248,014 ATokico Ltd. · 1993
- Shock absorber with frequency-dependent damping21US 7,395,907 B2Koni B. V. · 2008
- Pneumatic spring damper unit21US 7,886,882 B2Continental Aktiengesellschaf · 2011
- Controllable vibration damper14US 5,107,969 AAlfred Teves GmbH · 1992
- Device for providing a rigid mechanical link with frequency cut-off13US 5,568,847 ABertin & Cie · 1996