F01N 2570/00
Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
F01N2570/00 (Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds) appears on 1,902 US grants and 2,034 published applications in this corpus.
Search patents in F01N- Granted patents
- 1,902
- Published applications
- 2,034
- Assignees
- 561
- Inventors
- 3,952
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 5 | 0 |
| 1994 | 1 | 0 |
| 1995 | 16 | 0 |
| 1996 | 12 | 0 |
| 1997 | 21 | 0 |
| 1998 | 33 | 0 |
| 1999 | 32 | 0 |
| 2000 | 30 | 0 |
| 2001 | 60 | 29 |
| 2002 | 49 | 89 |
| 2003 | 65 | 95 |
| 2004 | 71 | 93 |
| 2005 | 63 | 88 |
| 2006 | 67 | 62 |
| 2007 | 53 | 57 |
| 2008 | 29 | 68 |
| 2009 | 37 | 100 |
| 2010 | 56 | 110 |
| 2011 | 44 | 63 |
| 2012 | 81 | 47 |
| 2013 | 63 | 43 |
| 2014 | 61 | 53 |
| 2015 | 56 | 86 |
| 2016 | 72 | 114 |
| 2017 | 84 | 131 |
| 2018 | 80 | 124 |
| 2019 | 132 | 115 |
| 2020 | 95 | 83 |
| 2021 | 101 | 85 |
| 2022 | 86 | 106 |
| 2023 | 91 | 84 |
| 2024 | 60 | 48 |
| 2025 | 52 | 36 |
| 2026 | 24 | 25 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F01N 2570/14Nitrogen oxidesIndexing code1,009
- F01N 2570/04Sulfur or sulfur oxidesIndexing code335
- F01N 2570/18AmmoniaIndexing code269
- F01N 2570/10Carbon or carbon oxidesIndexing code259
- F01N 2570/12HydrocarbonsIndexing code250
- F01N 2570/16OxygenIndexing code202
- F01N 2570/22Water or humidityIndexing code63
- F01N 2570/02LeadIndexing code11
Recent patents
- Exhaust gas purification catalyst6 Oct 2026US 12,752,237 B2Cataler Corporation
- Exhaust gas purification apparatus1 Sep 2026US 12,723,529 B2Isuzu Motors Limited
- Exhaust system25 Aug 2026US 12,715,567 B2Yanmar Holdings Co., Ltd.
- Scalable greenhouse gas capture systems and methods25 Aug 2026US 12,716,379 B2Marathon Petroleum Company LP
- Post-combustion engine exhaust gases absorber18 Aug 2026US 12,710,005 B2
- Systems, methods, and apparatuses for adsorbing carbon from engine exhaust gases1 Oct 2026US 2026/0298120 A1CO2 Filter, LLC
- Systems and methods for controlling tailpipe exhaust emissions1 Oct 2026US 2026/0298125 A1Cummins Inc.
- Papermaking mat and method for producing paper making mat27 Aug 2026US 2026/0250908 A1Ibiden Co., Ltd.
- Integrated process for removing carbon dioxide from a ship or offshore floating vessel using a rotating packed device20 Aug 2026US 2026/0243184 A1Chevron U.S.A.Inc.
- Engine system having recuperated catalyst in exhaust system and method20 Aug 2026US 2026/0243186 A1Caterpillar Inc.
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
- 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
- Engine with cylinder deactivation168US 6,023,929 AFord Global Technologies, LLC · 2000