F01N 3/0814
Combined with catalytic converters
Official title: {combined with catalytic converters, e.g. NOx absorption/storage reduction catalysts}
F01N3/0814 (Combined with catalytic converters) appears on 1,540 US grants and 1,649 published applications in this corpus.
Search patents in F01N- Granted patents
- 1,540
- Published applications
- 1,649
- Assignees
- 307
- Inventors
- 2,617
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 5 | 0 |
| 1995 | 6 | 0 |
| 1996 | 15 | 0 |
| 1997 | 22 | 0 |
| 1998 | 14 | 0 |
| 1999 | 26 | 0 |
| 2000 | 18 | 0 |
| 2001 | 40 | 21 |
| 2002 | 42 | 57 |
| 2003 | 51 | 95 |
| 2004 | 72 | 101 |
| 2005 | 63 | 70 |
| 2006 | 63 | 86 |
| 2007 | 54 | 66 |
| 2008 | 41 | 78 |
| 2009 | 37 | 88 |
| 2010 | 51 | 87 |
| 2011 | 53 | 65 |
| 2012 | 77 | 48 |
| 2013 | 49 | 62 |
| 2014 | 61 | 39 |
| 2015 | 62 | 58 |
| 2016 | 47 | 64 |
| 2017 | 69 | 106 |
| 2018 | 70 | 128 |
| 2019 | 111 | 89 |
| 2020 | 80 | 80 |
| 2021 | 74 | 41 |
| 2022 | 51 | 35 |
| 2023 | 29 | 28 |
| 2024 | 38 | 35 |
| 2025 | 28 | 15 |
| 2026 | 7 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Desulfurization method29 Sep 2026US 12,747,685 B2Subaru Corporation
- 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.
- Purification system21 Jul 2026US 12,687,123 B2Isuzu Motors Limited
- Engine exhaust aftertreatment system architecture with coordinated emission control16 Jun 2026US 12,655,781 B1GM Global Technology Operations LLC
- Reduction of nox and n2o in the exhaust gas of ship motors operated using nh330 Jul 2026US 2026/0216649 A1
- Exhaust Gas Purification Catalyst23 Jul 2026US 2026/0208107 A1Cataler Corporation
- Exhuast Gas Purification Catalyst16 Jul 2026US 2026/0199887 A1Cataler Corporation
- Zeolite catalysts with paired heteroatoms and methods thereof14 May 2026US 2026/0131318 A1BASF SE
- Control device of hybrid vehicle, and control method of hybrid vehicle23 Apr 2026US 2026/0109337 A1Isuzu Motors Limited
Most cited
By later US patents
- Method and apparatus for desulfating a no.sub.x trap176US 5,974,788 AFord Global Technologies, LLC · 1999
- Method and apparatus for treating an engine exhaust gas stream154US 6,171,556 B2Engelhard Corporation · 2001
- Exhaust gas purification system for low emission vehicle147US 6,167,696 AFord Motor Company · 2001
- Integrated NOx and PM reduction devices for the treatment of emissions from internal combustion engines116US 7,062,904 B1Eaton Corporation · 2006
- Device for purifying exhaust gas of engine114US 6,014,859 AToyota Jidosha Kabushiki Kaisha · 2000