F15B 21/008
Reduction of noise or vibration
Official title: {Reduction of noise or vibration}
F15B21/008 (Reduction of noise or vibration) appears on 205 US grants and 215 published applications in this corpus.
Search patents in F15B- Granted patents
- 205
- Published applications
- 215
- Assignees
- 151
- Inventors
- 476
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 5 | 0 |
| 2001 | 2 | 0 |
| 2002 | 4 | 2 |
| 2003 | 5 | 4 |
| 2004 | 3 | 4 |
| 2005 | 4 | 10 |
| 2006 | 8 | 9 |
| 2007 | 3 | 8 |
| 2008 | 7 | 6 |
| 2009 | 4 | 7 |
| 2010 | 2 | 6 |
| 2011 | 8 | 6 |
| 2012 | 5 | 3 |
| 2013 | 5 | 6 |
| 2014 | 3 | 5 |
| 2015 | 5 | 10 |
| 2016 | 4 | 9 |
| 2017 | 10 | 10 |
| 2018 | 6 | 15 |
| 2019 | 16 | 16 |
| 2020 | 11 | 20 |
| 2021 | 22 | 16 |
| 2022 | 12 | 11 |
| 2023 | 11 | 12 |
| 2024 | 10 | 11 |
| 2025 | 13 | 5 |
| 2026 | 3 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for real-time hydraulic cylinder drift monitoring25 Aug 2026US 12,716,432 B2Caterpillar Inc.
- Method and application for eliminating gaseous cavitation9 Jun 2026US 12,650,137 B2
- Low frequency noise reduction methods and devices27 Jan 2026US 12,534,925 B2American Wave Machines, Inc.
- Vibration damper in a hydraulic friction clutch actuation system of a motor vehicle23 Dec 2025US 12,504,049 B2Raicam Driveline S.R.L.
- Twin chamber air dryer and pneumatic system18 Nov 2025US 12,473,936 B2Zf Cv Systems Europe BV
- Brake apparatus for vehicles17 Sep 2026US 2026/0274233 A1Hyundai Mobis Co., Ltd.
- Submersible Hydraulic Power Units with Interchangeable Manifolds11 Jun 2026US 2026/0160275 A1
- Tail-rotor vibration dampener system23 Apr 2026US 2026/0109450 A1The Boeing Company
- Hydraulic system for working machine, working machine, and method of controlling working machine26 Mar 2026US 2026/0085496 A1Kubota Corporation
- Self-propelled agricultural harvester4 Dec 2025US 2025/0369461 A1CLAAS Selbstfahrende Erntemaschinen GmbH
Most cited
By later US patents
- Dialysis system having integrated pneumatic manifold77US 7,905,853 B2Baxter Healthcare S. A. · 2011
- Pressure exchanger with an anti-cavitation pressure relief system in the end covers70US 6,540,487 B2Energy Recovery, Inc. · 2003
- Control system for suppression of boom or arm oscillation31US 7,278,262 B2Board of Control of Michigan Technological University · 2007
- Hydraulic noise reduction assembly with variable side branch30US 6,234,758 B1Caterpillar Inc. · 2001
- Apparatus for controlling bounce of hydraulically powered equipment30US 6,705,079 B1HUSCO International, Inc. · 2004