F01N 3/0871
Using means for controlling
Official title: {using means for controlling, e.g. purging, the absorbents or adsorbents}
F01N3/0871 (Using means for controlling) appears on 1,200 US grants and 1,143 published applications in this corpus.
Search patents in F01N- Granted patents
- 1,200
- Published applications
- 1,143
- Assignees
- 241
- Inventors
- 2,071
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 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 | 2 | 0 |
| 1992 | 5 | 0 |
| 1993 | 4 | 0 |
| 1994 | 6 | 0 |
| 1995 | 26 | 0 |
| 1996 | 21 | 0 |
| 1997 | 25 | 0 |
| 1998 | 34 | 0 |
| 1999 | 33 | 0 |
| 2000 | 31 | 0 |
| 2001 | 45 | 18 |
| 2002 | 40 | 33 |
| 2003 | 31 | 69 |
| 2004 | 55 | 76 |
| 2005 | 55 | 53 |
| 2006 | 50 | 68 |
| 2007 | 39 | 58 |
| 2008 | 22 | 82 |
| 2009 | 37 | 102 |
| 2010 | 49 | 69 |
| 2011 | 62 | 43 |
| 2012 | 65 | 40 |
| 2013 | 42 | 51 |
| 2014 | 50 | 31 |
| 2015 | 48 | 36 |
| 2016 | 30 | 56 |
| 2017 | 47 | 49 |
| 2018 | 44 | 51 |
| 2019 | 51 | 35 |
| 2020 | 38 | 26 |
| 2021 | 26 | 19 |
| 2022 | 16 | 25 |
| 2023 | 23 | 20 |
| 2024 | 18 | 10 |
| 2025 | 17 | 17 |
| 2026 | 8 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Desulfurization method29 Sep 2026US 12,747,685 B2Subaru Corporation
- System and method for controlling a cold light off catalyst8 Sep 2026US 12,729,639 B2Fca US LLC
- Systems including a hydrogen internal combustion engine and aftertreatment system1 Sep 2026US 12,723,528 B2Cummins Emission Solutions Inc.
- Mild-hybrid electric vehicle (MHEV) emissions aftertreatment system18 Aug 2026US 12,710,025 B2Saudi Arabian Oil Company
- Systems and methods to assess state-of-health of an exhaust gas constituent capture device28 Jul 2026US 12,692,811 B2Cummins Inc.
- System and method for controlling a cold light off catalyst3 Sep 2026US 2026/0258742 A1Fca US LLC
- System and method for bypassing carbon capture system of gas turbine engine18 Jun 2026US 2026/0166486 A1
- Systems and methods for treatment of gas engine exhaust23 Apr 2026US 2026/0110259 A1Ceco Environmental IP Inc.
- Exhaust gas treatment system and method26 Mar 2026US 2026/0084105 A1SodaFlexx Distribution LLP
- Mild-hybrid electric vehicle (mhev) emissions aftertreatment system19 Mar 2026US 2026/0078723 A1Aramco Services Company
Most cited
By later US patents
- 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
- Exhaust gas purification system for low emission vehicle147US 6,167,696 AFord Motor Company · 2001
- Method for purifying exhaust gas of a diesel engine146US 5,746,989 AToyota Jidosha Kabushiki Kaisha · 1998