F01N 1/081
By passing the exhaust gases through a mass of particles
Official title: {by passing the exhaust gases through a mass of particles}
F01N1/081 (By passing the exhaust gases through a mass of particles) appears on 21 US grants and 12 published applications in this corpus.
Search patents in F01N- Granted patents
- 21
- Published applications
- 12
- Assignees
- 12
- Inventors
- 26
- Latest grant
- 25 Aug 2015
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 2 | 1 |
| 2003 | 1 | 1 |
| 2004 | 0 | 0 |
| 2005 | 1 | 1 |
| 2006 | 1 | 1 |
| 2007 | 2 | 1 |
| 2008 | 0 | 1 |
| 2009 | 2 | 1 |
| 2010 | 1 | 0 |
| 2011 | 0 | 1 |
| 2012 | 1 | 1 |
| 2013 | 0 | 0 |
| 2014 | 1 | 1 |
| 2015 | 1 | 0 |
| 2016 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Noise suppressor25 Aug 2015US 9,115,667 B2NOVA Chemicals (International) S.A.
- Muffler for internal combustion engine30 Sep 2014US 8,844,673 B2Futaba Industrial Co., Ltd.
- Sound absorber having helical fixtures20 Nov 2012US 8,312,962 B2Deutsches Zentrum für Luft- und Raumfahrt e. V.
- Snap-action valve for exhaust system17 Aug 2010US 7,775,322 B2Tenneco Automotive Operating Company Inc.
- Inlet metallic foam support coupled to precious metal catalyst for application on 4 stroke platforms5 May 2009US 7,527,774 B2BASF Catalysts LLC
- Sound absorbers3 Mar 2016US 2016/0063985 A1
- Noise suppressor13 Nov 2014US 2014/0332311 A1NOVA Chemicals (International) S.A.
- Muffler for Internal Combustion Engine6 Dec 2012US 2012/0305330 A1Futaba Industrial Co., Ltd.
- Sound absorber having helical fixtures22 Dec 2011US 2011/0308884 A1Deutsches Zentrum für Luft- und Raumfahrt e. V.
- Catalyst with bioreactor for combustion engines22 Oct 2009US 2009/0263296 A1
Most cited
By later US patents
- Apparatuses and methods for sound absorption using hollow beads loosely contained in an enclosure26US 5,777,947 AGeorgia Tech Research Corporation · 1998
- Silencer for an internal combustion engine23US 4,124,091 AToyota Jidosha Kogyo Kabushiki Kaisha · 1978
- Methods and systems for reducing or eliminating the production of pollutants during combustion of carbon-containing fuels22US 6,962,681 B2Maganas OH Radicals, Inc. · 2005
- Blowdown and venting jet noise suppressor21US 6,343,672 B12002
- Pneumatic tool19US 7,191,849 B2Hyphone Machine Industry Co., Ltd. · 2007