F01N 2260/022
Using air
Official title: using air
F01N2260/022 (Using air) appears on 184 US grants and 181 published applications in this corpus.
Search patents in F01N- Granted patents
- 184
- Published applications
- 181
- Assignees
- 111
- Inventors
- 479
- Latest grant
- 17 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 4 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 4 | 0 |
| 2000 | 9 | 0 |
| 2001 | 7 | 1 |
| 2002 | 2 | 2 |
| 2003 | 1 | 1 |
| 2004 | 3 | 4 |
| 2005 | 2 | 6 |
| 2006 | 3 | 1 |
| 2007 | 3 | 4 |
| 2008 | 0 | 3 |
| 2009 | 2 | 4 |
| 2010 | 3 | 11 |
| 2011 | 0 | 6 |
| 2012 | 7 | 4 |
| 2013 | 5 | 13 |
| 2014 | 12 | 13 |
| 2015 | 9 | 24 |
| 2016 | 13 | 24 |
| 2017 | 18 | 11 |
| 2018 | 10 | 9 |
| 2019 | 10 | 5 |
| 2020 | 3 | 5 |
| 2021 | 3 | 3 |
| 2022 | 6 | 7 |
| 2023 | 2 | 8 |
| 2024 | 11 | 6 |
| 2025 | 8 | 5 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Engine17 Feb 2026US 12,553,375 B2Yanmar Holdings Co., Ltd.
- Non-emitting engines with oxyfuel combustion and carbon capture system25 Nov 2025US 12,480,437 B2Cummins Inc.
- Exhaust purification apparatus26 Aug 2025US 12,398,664 B2Yanmar Holdings Co., Ltd.
- Heat shield for exhaust system20 May 2025US 12,305,549 B2AGCO International GmbH
- Engine device15 Apr 2025US 12,276,217 B2Yanmar Power Technology Co., Ltd.
- Vehicle airflow diverter19 Mar 2026US 2026/0078784 A1McLaren Automotive Limited
- Exhaust assembly heat mitigation system14 Aug 2025US 2025/0257680 A1Caterpillar Inc.
- Exhaust purification apparatus22 May 2025US 2025/0163838 A1Yanmar Holdings Co., Ltd.
- Exhaust assembly for a utility vehicle17 Apr 2025US 2025/0121678 A1Polaris Industries Inc.
- Heat Shield for Exhaust System3 Apr 2025US 2025/0109705 A1AGCO International GmbH
Most cited
By later US patents
- Reducing NO.sub.x emissions from an engine by temperature-controlled urea injection for selective catalytic reduction120US 5,976,475 AClean Diesel Technologies, Inc. · 1999
- Apparatus and method for the after-treatment of exhaust gases from an internal combustion engine operating with excess air102US 6,192,677 B1Siemens Aktiengesellschaft · 2001
- Exhaust tip65US 7,007,720 B1Lacks Industries, Inc. · 2006
- System for NOx reduction in exhaust gases64US 6,805,849 B1HJS Fahrzeugtechnik GmbH & Co. · 2004
- Combination catalytic converter and heat exchanger that maintains a catalyst substrate within an efficient operating temperature range for emmisions reduction50US 5,987,885 AChrysler Corporation · 1999