F23J 2900/13003
Means for reducing the noise in smoke conducing ducts or systems
F23J2900/13003 (Means for reducing the noise in smoke conducing ducts or systems) appears on 23 US grants and 19 published applications in this corpus.
Search patents in F23J- Granted patents
- 23
- Published applications
- 19
- Assignees
- 36
- Inventors
- 77
- Latest grant
- 25 Apr 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 3 | 1 |
| 2003 | 0 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 2 |
| 2008 | 0 | 0 |
| 2009 | 1 | 1 |
| 2010 | 2 | 1 |
| 2011 | 1 | 2 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 1 | 2 |
| 2015 | 0 | 3 |
| 2016 | 1 | 0 |
| 2017 | 0 | 1 |
| 2018 | 2 | 0 |
| 2019 | 0 | 1 |
| 2020 | 1 | 0 |
| 2021 | 0 | 1 |
| 2022 | 0 | 1 |
| 2023 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Soundproof fume discharge conduit25 Apr 2023US 11,634,904 B2Danieli & C. Officine Meccaniche SpA
- Apparatus and method for sound reduction of high efficiency furnaces25 Aug 2020US 10,753,607 B2Lennox Industries Inc.
- Exhaust flue15 May 2018US 9,970,358 B2Mitsubishi Heavy Industries, Ltd.
- Exhaust case and combustion apparatus provided with the same27 Feb 2018US 9,903,610 B2Noritz Corporation
- Boiler, and a silencer for a flue gas duct in a boiler12 Jul 2016US 9,389,001 B2Valmet Technologies Oy
- Pulsating combustion device with improved energy conversion efficiency and reduced noise level27 Jan 2022US 2022/0026059 A1
- Soundproof fume discharge conduit15 Apr 2021US 2021/0108407 A1Danieli & C. Officine Meccaniche SpA
- Apparatus and method for sound reduction of high efficiency furnaces13 Jun 2019US 2019/0178493 A1Lennox Industries Inc.
- Heating device exhaust pipe arrangement with integrated muffler and method for producing same28 Sep 2017US 2017/0276349 A1Webasto SE
- Exhaust flue31 Dec 2015US 2015/0377139 A1Mitsubishi Heavy Industries, Ltd.
Most cited
By later US patents
- Acoustic silencer nozzle27US 6,112,850 AMet Pro Corporation · 2000
- Acoustic wind band22US 6,431,974 B1Met Pro Corporation · 2002
- Dispersion exhauster for engines and combustion heaters12US 4,069,668 AThe United States of America as represented by the Secretary of the Army · 1978
- Exhaust gas system with helmholtz resonator12US 6,705,428 B2ABB Turbo Systems AG · 2004
- Silencer with internal rain diverter7US 6,374,944 B1Eaton Corporation · 2002