F01N 13/143
With air filling the space between both walls
Official title: {with air filling the space between both walls}
F01N13/143 (With air filling the space between both walls) appears on 77 US grants and 109 published applications in this corpus.
Search patents in F01N- Granted patents
- 77
- Published applications
- 109
- Assignees
- 69
- Inventors
- 253
- Latest grant
- 18 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 4 |
| 2007 | 1 | 6 |
| 2008 | 0 | 2 |
| 2009 | 1 | 8 |
| 2010 | 3 | 5 |
| 2011 | 1 | 5 |
| 2012 | 5 | 6 |
| 2013 | 4 | 4 |
| 2014 | 7 | 3 |
| 2015 | 1 | 19 |
| 2016 | 10 | 9 |
| 2017 | 7 | 7 |
| 2018 | 4 | 4 |
| 2019 | 7 | 5 |
| 2020 | 8 | 6 |
| 2021 | 2 | 4 |
| 2022 | 4 | 2 |
| 2023 | 3 | 3 |
| 2024 | 4 | 3 |
| 2025 | 1 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Dosing and mixing assemblies for exhaust aftertreatment system18 Nov 2025US 12,473,851 B2Donaldson Company, Inc.
- Exhaust system for a work vehicle30 Jul 2024US 12,049,838 B2Deere & Company
- Exhaust gas system for an internal combustion engine2 Jul 2024US 12,025,045 B2Purem GmbH
- Exhaust system for a work vehicle9 Apr 2024US 11,952,928 B2Deere & Company
- Catalyst device2 Apr 2024US 11,946,407 B2Toyota Jidosha Kabushiki Kaisha
- Exhaust Assembly23 Jul 2026US 2026/0210277 A1AGCO International GmbH
- Thermal Insulation System for Exhaust Gas Temperature Management1 May 2025US 2025/0137571 A1
- Method for improving the coating of a honeycomb body with a catalytically active coating14 Nov 2024US 2024/0375094 A1Vitesco Technologies GmbH
- Exhaust system for a work vehicle28 Mar 2024US 2024/0102412 A1Deere & Company
- Dosing and mixing assemblies for exhaust aftertreatment system18 Jan 2024US 2024/0018890 A1Donaldson Company, Inc.
Most cited
By later US patents
- Reductant decomposition reactor chamber23US 10,024,217 B1Cummins Emission Solutions Inc. · 2018
- Catalytic converter having pressurized-gas support means20US 3,972,687 APaul Gillet GmbH · 1976
- Insulated cover for mixer assembly19US 10,190,465 B2Faurecia Emissions Control Technologies, USA, LLC · 2019
- Apparatus for fastening an exhaust gas turbocharger on an exhaust chamber of a combustion engine14US 6,688,103 B2Dr. Ing. h,c.F. Porsche Aktiengesellschaft · 2004
- Joint for an engine exhaust system component14US 7,779,624 B2Donaldson Company, Inc. · 2010