F02M 35/1244
Using interference
Official title: {using interference; Masking or reflecting sound}
F02M35/1244 (Using interference) appears on 65 US grants and 54 published applications in this corpus.
Search patents in F02M- Granted patents
- 65
- Published applications
- 54
- Assignees
- 49
- Inventors
- 140
- Latest grant
- 16 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 4 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 3 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 6 |
| 2002 | 1 | 8 |
| 2003 | 3 | 3 |
| 2004 | 5 | 0 |
| 2005 | 2 | 2 |
| 2006 | 5 | 3 |
| 2007 | 2 | 4 |
| 2008 | 3 | 5 |
| 2009 | 3 | 3 |
| 2010 | 2 | 0 |
| 2011 | 1 | 1 |
| 2012 | 0 | 1 |
| 2013 | 1 | 4 |
| 2014 | 2 | 3 |
| 2015 | 4 | 3 |
| 2016 | 3 | 0 |
| 2017 | 2 | 2 |
| 2018 | 1 | 2 |
| 2019 | 2 | 2 |
| 2020 | 2 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 1 | 1 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Filter housing and an air filter system16 Sep 2025US 12,415,151 B2Volvo Truck Corporation
- Device increasing engine efficiency and reducing exhaust and noise16 Jul 2024US 12,037,931 B2
- Silencing device3 Nov 2020US 10,823,122 B2Subaru Corporation
- Acoustic damper with barrier member configured to dampen acoustic energy propogating upstream in gas flow14 Jan 2020US 10,533,452 B2Garrett Transportation I Inc.
- Sound attenuation device and method31 Dec 2019US 10,522,128 B2Centre National De La Recherche Scientif
- A device increasing engine efficiency and reducing exhaust and noise18 Apr 2024US 2024/0125261 A1
- A filter housing and an air filter system28 Sep 2023US 2023/0302390 A1Volvo Truck Corporation
- Silencer systems and assemblies28 Feb 2019US 2019/0063382 A1Cummins Inc.
- Acoustic damper with barrier member configured to dampen acoustic energy propogating upstream in gas flow24 Jan 2019US 2019/0024534 A1Honeywell International Inc.
- Silencing device13 Sep 2018US 2018/0258891 A1Subaru Corporation
Most cited
By later US patents
- Engine air cleaner - noise reducer47US 4,782,912 AFord Motor Company · 1988
- Noise suppressor apparatus for a gas duct43US 7,117,973 B2Mann+Hummel GmbH · 2006
- Variable resonator42US 6,508,331 B1Siemens Canada Limited · 2003
- Apparatus and method for actively reducing noise in vehicular passengers compartment40US 5,850,458 AUnisia Jecs Corporation · 1998
- System and method for reducing engine noise39US 5,828,759 ASiemens Electric Limited · 1998