F01N 13/0097
The purifying devices are arranged in a single housing
Official title: {the purifying devices are arranged in a single housing}
F01N13/0097 (The purifying devices are arranged in a single housing) appears on 1,539 US grants and 1,490 published applications in this corpus.
Search patents in F01N- Granted patents
- 1,539
- Published applications
- 1,490
- Assignees
- 460
- Inventors
- 3,013
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 18 | 0 |
| 1977 | 6 | 0 |
| 1978 | 4 | 0 |
| 1979 | 3 | 0 |
| 1980 | 10 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 8 | 0 |
| 1984 | 5 | 0 |
| 1985 | 6 | 0 |
| 1986 | 2 | 0 |
| 1987 | 7 | 0 |
| 1988 | 4 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 12 | 0 |
| 1992 | 16 | 0 |
| 1993 | 16 | 0 |
| 1994 | 19 | 0 |
| 1995 | 25 | 0 |
| 1996 | 17 | 0 |
| 1997 | 29 | 0 |
| 1998 | 25 | 0 |
| 1999 | 27 | 0 |
| 2000 | 23 | 0 |
| 2001 | 33 | 6 |
| 2002 | 35 | 41 |
| 2003 | 34 | 60 |
| 2004 | 43 | 83 |
| 2005 | 44 | 64 |
| 2006 | 48 | 101 |
| 2007 | 57 | 91 |
| 2008 | 54 | 108 |
| 2009 | 63 | 111 |
| 2010 | 66 | 90 |
| 2011 | 62 | 109 |
| 2012 | 84 | 68 |
| 2013 | 83 | 60 |
| 2014 | 79 | 73 |
| 2015 | 72 | 73 |
| 2016 | 62 | 58 |
| 2017 | 53 | 59 |
| 2018 | 43 | 42 |
| 2019 | 53 | 37 |
| 2020 | 35 | 39 |
| 2021 | 44 | 23 |
| 2022 | 29 | 30 |
| 2023 | 23 | 20 |
| 2024 | 22 | 24 |
| 2025 | 23 | 14 |
| 2026 | 4 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Saddle-type vehicle with exhaust pipe catalyst arrangement15 Sep 2026US 12,736,004 B2Kawasaki Motors, Ltd.
- Exhaust gas aftertreatment system7 Jul 2026US 12,674,406 B2Cummins Emission Solutions Inc.
- Exhaust treatment devices for exhaust aftertreatment system10 Feb 2026US 12,546,244 B1Cummins Emission Solutions Inc.
- Aftertreatment system, dual fuel system, and methods therefor6 Jan 2026US 12,516,619 B2Cummins Power Generation Inc.
- Vehicle with exhaust purification device16 Dec 2025US 12,496,898 B2Toyota Jidosha Kabushiki Kaisha
- Engine Assembly20 Aug 2026US 2026/0241341 A1Perkins Engines Company Limited
- Exhaust purification device13 Aug 2026US 2026/0235058 A1Tokyo Roki Co., Ltd.
- Multi-stage exhaust after-treatment device with compact configuration and methods of manufacturing, installing, and using the same25 Jun 2026US 2026/0176998 A1Daimler Truck North America LLC
- Exhaust aftertreatment system with filter cartridge assembly14 May 2026US 2026/0132728 A1Cummins Emission Solutions Inc.
- Aftertreatment system, dual fuel system, and methods therefor30 Apr 2026US 2026/0117688 A1Cummins Power Generation Inc.
Most cited
By later US patents
- Compact vacuum insulation176US 5,157,893 AMidwest Research Institute · 1992
- Compact vacuum insulation174US 5,175,975 AMidwest Research Institute · 1993
- Staged reductant injection for improved NO.sub.x reduction157US 6,125,629 AEngelhard Corporation · 2000
- Method and apparatus for controlled introduction of a reducing agent into a nitrogen oxide-containing exhaust gas153US 5,628,186 ASiemens Aktiengesellschaft · 1997
- Cooking utensil with improved heat retention150US 5,643,485 AMidwest Research Institute · 1997