F01N 2610/00
Adding substances to exhaust gases
F01N2610/00 (Adding substances to exhaust gases) appears on 5,314 US grants and 6,269 published applications in this corpus.
Search patents in F01N- Granted patents
- 5,314
- Published applications
- 6,269
- Assignees
- 952
- Inventors
- 8,458
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 3 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 4 | 0 |
| 1987 | 2 | 0 |
| 1988 | 5 | 0 |
| 1989 | 4 | 0 |
| 1990 | 4 | 0 |
| 1991 | 5 | 0 |
| 1992 | 3 | 0 |
| 1993 | 11 | 0 |
| 1994 | 7 | 0 |
| 1995 | 21 | 0 |
| 1996 | 13 | 0 |
| 1997 | 20 | 0 |
| 1998 | 31 | 0 |
| 1999 | 37 | 0 |
| 2000 | 36 | 0 |
| 2001 | 52 | 23 |
| 2002 | 51 | 51 |
| 2003 | 43 | 75 |
| 2004 | 64 | 130 |
| 2005 | 74 | 104 |
| 2006 | 79 | 127 |
| 2007 | 54 | 194 |
| 2008 | 66 | 242 |
| 2009 | 101 | 317 |
| 2010 | 146 | 382 |
| 2011 | 176 | 347 |
| 2012 | 260 | 262 |
| 2013 | 302 | 366 |
| 2014 | 282 | 324 |
| 2015 | 354 | 444 |
| 2016 | 326 | 421 |
| 2017 | 404 | 406 |
| 2018 | 303 | 392 |
| 2019 | 431 | 335 |
| 2020 | 337 | 315 |
| 2021 | 314 | 238 |
| 2022 | 263 | 227 |
| 2023 | 213 | 182 |
| 2024 | 178 | 150 |
| 2025 | 155 | 124 |
| 2026 | 65 | 91 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F01N 2610/02The substance being ammonia or ureaIndexing code3,727
- F01N 2610/14Arrangements for the supply of substancesIndexing code2,679
- F01N 2610/03The substance being hydrocarbonsIndexing code1,151
- F01N 2610/10The substance being heatedIndexing code743
- F01N 2610/08Adding substances to exhaust gases: with prior mixing of the substances withIndexing code318
- F01N 2610/11The substance or part of the dosing system being cooledIndexing code185
- F01N 2610/04The substance being hydrogenIndexing code180
- F01N 2610/06The substance being in the gaseous formIndexing code164
Recent patents
- Engine device6 Oct 2026US 12,753,713 B2Yanmar Holdings Co., Ltd.
- Decomposition chamber for aftertreatment system22 Sep 2026US 12,742,406 B2Cummins Emission Solutions Inc.
- Display driving device comprising an emission circuit and positive feedback circuit22 Sep 2026US 12,742,407 B2Purem GmbH
- Post-processing system15 Sep 2026US 12,736,003 B2Isuzu Motors Limited
- Systems including a hydrogen internal combustion engine and aftertreatment system1 Sep 2026US 12,723,528 B2Cummins Emission Solutions Inc.
- Pressurized systems and methods for providing a nebulized catalyst8 Oct 2026US 2026/0309066 A1Jake Vernon LLC
- Containerized ultra-low nox diesel engine generator set with roof-mounted selective catalytic reduction system8 Oct 2026US 2026/0309075 A1Industrial Service Solutions WC, Inc.
- Decomposition chamber for aftertreatment system1 Oct 2026US 2026/0298121 A1Cummins Emission Solutions Inc.
- Ultra-low nox diesel engine generator with selective catalytic reduction engineered exhaust system and method1 Oct 2026US 2026/0298124 A1Industrial Service Solutions WC, Inc.
- Systems and methods for controlling tailpipe exhaust emissions1 Oct 2026US 2026/0298125 A1Cummins Inc.
Most cited
By later US patents
- Method and apparatus for reducing nitrogen oxides from internal combustion engine207US 5,272,871 AKabushiki Kaisha Toyota Chuo Kenkyusho · 1993
- Exhaust purification device of internal combustion engine199US 5,473,887 AToyota Jidosha Kabushiki Kaisha · 1995
- Exhaust gas purification device for an internal combustion engine197US 5,974,791 AToyota Jidosha Kabushiki Kaisha · 1999
- Apparatus and method for internal combustion engine control173US 5,657,625 AMitsubishi Jidosha Kogyo Kabushiki Kaisha · 1997
- Reducing no.sub.x emissions from an engine by temperature-controlled urea injection for selective catalytic reduction171US 6,063,350 AClean Diesel Technologies, Inc. · 2000