F01N 3/043
Without contact between liquid and exhaust gases
Official title: {without contact between liquid and exhaust gases}
F01N3/043 (Without contact between liquid and exhaust gases) appears on 469 US grants and 336 published applications in this corpus.
Search patents in F01N- Granted patents
- 469
- Published applications
- 336
- Assignees
- 193
- Inventors
- 902
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 5 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 6 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 6 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 5 | 0 |
| 1991 | 8 | 0 |
| 1992 | 8 | 0 |
| 1993 | 8 | 0 |
| 1994 | 9 | 0 |
| 1995 | 2 | 0 |
| 1996 | 9 | 0 |
| 1997 | 5 | 0 |
| 1998 | 17 | 0 |
| 1999 | 17 | 0 |
| 2000 | 11 | 0 |
| 2001 | 4 | 9 |
| 2002 | 15 | 17 |
| 2003 | 20 | 12 |
| 2004 | 9 | 15 |
| 2005 | 11 | 9 |
| 2006 | 11 | 12 |
| 2007 | 9 | 10 |
| 2008 | 6 | 11 |
| 2009 | 6 | 10 |
| 2010 | 8 | 11 |
| 2011 | 4 | 15 |
| 2012 | 9 | 20 |
| 2013 | 20 | 18 |
| 2014 | 15 | 22 |
| 2015 | 24 | 16 |
| 2016 | 18 | 29 |
| 2017 | 29 | 14 |
| 2018 | 14 | 17 |
| 2019 | 18 | 13 |
| 2020 | 24 | 19 |
| 2021 | 19 | 8 |
| 2022 | 15 | 12 |
| 2023 | 7 | 8 |
| 2024 | 7 | 5 |
| 2025 | 11 | 3 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Apparatus for reducing greenhouse gas emission in vessel and vessel including the same14 Jul 2026US 12,678,736 B2Daewoo Shipbuilding & Marine Engineering Co., Ltd.
- Drive system30 Dec 2025US 12,512,727 B2Hitachi Astemo, Ltd.
- Absorption chiller system with a transport membrane heat exchanger30 Sep 2025US 12,429,254 B2Scuderi Group, LLC
- Water-cooled flue gas collecting apparatus and wake treatment system including the same23 Sep 2025US 12,421,922 B2Agency for Defense Development
- Exhaust manifold assembly for internal combustion engine5 Aug 2025US 12,378,906 B1Caterpillar Inc.
- Absorption chiller system with a transport membrane heat exchanger23 Apr 2026US 2026/0110462 A1Scuderi Group, LLC
- Marine vessel and exhaust manifold for marine vessel29 May 2025US 2025/0172081 A1Yamaha Hatsudoki Kabushiki Kaisha
- Exhaust assembly for a utility vehicle17 Apr 2025US 2025/0121678 A1Polaris Industries Inc.
- Absorption chiller system with a transport membrane heat exchanger30 Jan 2025US 2025/0035345 A1Scuderi Group, LLC
- High Efficiency Thermo-Electric Power Generation for Hybrid Vehicles21 Nov 2024US 2024/0384676 A1
Most cited
By later US patents
- Exhaust element with heat exchanger65US 6,141,961 AECIA-Equipments et Composants pour l'Industrie Automobile · 2000
- EGR control system and method for an internal combustion engine64US 6,742,335 B2Clean Air Power, Inc. · 2004
- Heat isolated catalytic reactor56US 5,488,826 ADry Systems Technologies · 1996
- Engine muffler of heat-exchanging type49US 4,426,844 AKubota Corporation · 1984
- Cooling device for boat engine47US 4,991,546 ASanshin Kogyo Kabushiki Kaisha · 1991