F04D 29/668
Damping or preventing mechanical vibrations
Official title: {damping or preventing mechanical vibrations}
F04D29/668 (Damping or preventing mechanical vibrations) appears on 860 US grants and 956 published applications in this corpus.
Search patents in F04D- Granted patents
- 860
- Published applications
- 956
- Assignees
- 434
- Inventors
- 2,181
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 5 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 3 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 5 | 0 |
| 1990 | 5 | 0 |
| 1991 | 8 | 0 |
| 1992 | 4 | 0 |
| 1993 | 5 | 0 |
| 1994 | 6 | 0 |
| 1995 | 5 | 0 |
| 1996 | 5 | 0 |
| 1997 | 6 | 0 |
| 1998 | 5 | 0 |
| 1999 | 4 | 0 |
| 2000 | 9 | 0 |
| 2001 | 9 | 5 |
| 2002 | 13 | 6 |
| 2003 | 16 | 11 |
| 2004 | 5 | 21 |
| 2005 | 8 | 26 |
| 2006 | 17 | 22 |
| 2007 | 11 | 19 |
| 2008 | 10 | 28 |
| 2009 | 15 | 30 |
| 2010 | 15 | 36 |
| 2011 | 14 | 20 |
| 2012 | 23 | 31 |
| 2013 | 27 | 39 |
| 2014 | 27 | 54 |
| 2015 | 32 | 63 |
| 2016 | 33 | 57 |
| 2017 | 46 | 67 |
| 2018 | 51 | 64 |
| 2019 | 69 | 74 |
| 2020 | 81 | 41 |
| 2021 | 42 | 44 |
| 2022 | 51 | 41 |
| 2023 | 45 | 47 |
| 2024 | 40 | 38 |
| 2025 | 41 | 40 |
| 2026 | 21 | 32 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- CPAP device6 Oct 2026US 12,752,066 B2Murata Manufacturing Co., Ltd.
- Fan casing, blower assembly, and vehicle air conditioning system15 Sep 2026US 12,738,802 B2Luxshare Intelligent Manufacture Technology (Changshu) Co., Ltd
- Fan unit1 Sep 2026US 12,723,600 B2Nidec Corporation
- Portable fan25 Aug 2026US 12,716,421 B2Milwaukee Electric Tool Corporation
- Packaged fan18 Aug 2026US 12,710,054 B2Evapco, Inc.
- Motor and a centrifugal fan thereof30 Jul 2026US 2026/0218712 A1
- Fan motor and cleaner having fan motor23 Jul 2026US 2026/0207018 A1LG Electronics Inc.
- Fan with automated balance control to minimize oscillation and related methods23 Jul 2026US 2026/0210380 A1Delta T, LLC
- Fan and electronic device23 Jul 2026US 2026/0214837 A1Champ Tech Optical (Foshan) Corporation
- Bearing Device With Squeeze Film Damper, and Centrifugal Compressor9 Jul 2026US 2026/0194064 A1Hitachi Industrial Products, Ltd.
Most cited
By later US patents
- Blower with bearing tube333US 8,636,479 B2ResMed Motor Technologies Inc. · 2014
- Vibration isolating seal for mounting fans and blowers154US 4,568,243 ABarry Wright Corporation · 1986
- Vibration dampened blower138US 4,978,281 A1990
- Active control of unsteady motion phenomena in turbomachinery82US 5,005,353 AROLLS-ROYCE plc · 1991
- Fan with noise reduction74US 4,089,618 ARotron Incorporated · 1978