F01N 2560/026
For measuring or detecting nox
Official title: for measuring or detecting NOx
F01N2560/026 (For measuring or detecting nox) appears on 1,123 US grants and 1,288 published applications in this corpus.
Search patents in F01N- Granted patents
- 1,123
- Published applications
- 1,288
- Assignees
- 245
- Inventors
- 2,132
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 5 | 0 |
| 1999 | 2 | 0 |
| 2000 | 4 | 0 |
| 2001 | 7 | 1 |
| 2002 | 7 | 5 |
| 2003 | 4 | 16 |
| 2004 | 11 | 26 |
| 2005 | 16 | 20 |
| 2006 | 19 | 29 |
| 2007 | 16 | 36 |
| 2008 | 15 | 39 |
| 2009 | 23 | 58 |
| 2010 | 23 | 69 |
| 2011 | 28 | 70 |
| 2012 | 62 | 57 |
| 2013 | 63 | 56 |
| 2014 | 70 | 59 |
| 2015 | 67 | 103 |
| 2016 | 76 | 77 |
| 2017 | 72 | 71 |
| 2018 | 67 | 79 |
| 2019 | 78 | 83 |
| 2020 | 76 | 78 |
| 2021 | 80 | 73 |
| 2022 | 74 | 63 |
| 2023 | 52 | 36 |
| 2024 | 38 | 38 |
| 2025 | 40 | 28 |
| 2026 | 16 | 18 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Work vehicle and aftertreatment system therefor25 Aug 2026US 12,716,375 B2Deere & Company
- System and method for adaptive control of air-to-fuel ratio18 Aug 2026US 12,710,014 B2Caterpillar Inc.
- System and method for adaptive control of ammonia-NOx ratio28 Jul 2026US 12,692,810 B2Caterpillar Inc.
- Reducing agent supply device, method for controlling reducing agent supply device, and control device14 Jul 2026US 12,680,487 B2Komatsu Ltd.
- Engine exhaust aftertreatment system architecture with coordinated emission control16 Jun 2026US 12,655,781 B1GM Global Technology Operations LLC
- Exhaust monitoring apparatus and exhaust monitoring method27 Aug 2026US 2026/0251083 A1Toyota Jidosha Kabushiki Kaisha
- Exhaust purification device13 Aug 2026US 2026/0235058 A1Tokyo Roki Co., Ltd.
- Aftertreatment system nox and ammonia control strategy13 Aug 2026US 2026/0235059 A1Cummins Inc.
- Work vehicle and aftertreatment system therefor6 Aug 2026US 2026/0226857 A1Deere & Company
- Exhaust monitoring apparatus6 Aug 2026US 2026/0226858 A1Toyota Jidosha Kabushiki Kaisha
Most cited
By later US patents
- Exhaust gas purification device for an internal combustion engine197US 5,974,791 AToyota Jidosha Kabushiki Kaisha · 1999
- 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
- Exhaust gas purification system for an internal combustion engine133US 5,201,802 AToyota Jidosha Kabushiki Kaisha · 1993
- NOx emission-control system using a virtual sensor122US 6,882,929 B2Caterpillar Inc. · 2005