F01N 2570/04
Sulfur or sulfur oxides
F01N2570/04 (Sulfur or sulfur oxides) appears on 335 US grants and 295 published applications in this corpus.
Search patents in F01N- Granted patents
- 335
- Published applications
- 295
- Assignees
- 147
- Inventors
- 717
- Latest grant
- 31 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 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 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 7 | 0 |
| 1996 | 3 | 0 |
| 1997 | 5 | 0 |
| 1998 | 11 | 0 |
| 1999 | 5 | 0 |
| 2000 | 9 | 0 |
| 2001 | 30 | 14 |
| 2002 | 20 | 27 |
| 2003 | 24 | 30 |
| 2004 | 23 | 26 |
| 2005 | 14 | 23 |
| 2006 | 22 | 12 |
| 2007 | 14 | 9 |
| 2008 | 8 | 10 |
| 2009 | 7 | 24 |
| 2010 | 8 | 9 |
| 2011 | 12 | 6 |
| 2012 | 10 | 6 |
| 2013 | 3 | 5 |
| 2014 | 7 | 6 |
| 2015 | 9 | 16 |
| 2016 | 7 | 10 |
| 2017 | 11 | 10 |
| 2018 | 9 | 4 |
| 2019 | 6 | 12 |
| 2020 | 9 | 5 |
| 2021 | 6 | 6 |
| 2022 | 4 | 7 |
| 2023 | 12 | 11 |
| 2024 | 6 | 5 |
| 2025 | 3 | 1 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Information communication device of vehicle, information management server, and information communication system31 Mar 2026US 12,592,101 B2Toyota Jidosha Kabushiki Kaisha
- Exhaust gas treatment system and method10 Feb 2026US 12,544,716 B2SodaFlexx Distribution LLP
- Scrubber for cleaning of a gas15 Apr 2025US 12,274,970 B2Alfa Laval Corporate AB
- Catalytic system and method for the removal of HCN from off-gases of a fluid cracking unit using same, and FCC unit assembly including the catalytic system15 Apr 2025US 12,274,980 B2Umicore AG & Co. KG
- Method and device for determining the sulphur content in an exhaust gas channel of a motor vehicle in relation to the supplied fuel21 Jan 2025US 12,203,398 B2Vitesco Technologies GmbH
- Exhaust gas treatment system and method26 Mar 2026US 2026/0084105 A1SodaFlexx Distribution LLP
- Carbon dioxide capture and carbon capture and utilization system for ship, and method therefor13 Mar 2025US 2025/0083100 A1Lowcarbon Co., Ltd.
- Flue gas conditioning19 Dec 2024US 2024/0416279 A1
- Flue gas conditioning19 Dec 2024US 2024/0416281 A1
- Flue gas conditioning19 Dec 2024US 2024/0416282 A1
Most cited
By later US patents
- Exhaust gas purification device for an internal combustion engine197US 5,974,791 AToyota Jidosha Kabushiki Kaisha · 1999
- Method and apparatus for desulfating a no.sub.x trap176US 5,974,788 AFord Global Technologies, LLC · 1999
- Apparatus and method for internal combustion engine control173US 5,657,625 AMitsubishi Jidosha Kogyo Kabushiki Kaisha · 1997
- Exhaust gas purification apparatus for an internal combustion engine149US 5,402,641 AToyota Jidosha Kabushiki Kaisha · 1995
- Method for purifying exhaust gas of a diesel engine146US 5,746,989 AToyota Jidosha Kabushiki Kaisha · 1998