F01N 2560/025
For measuring or detecting o2
Official title: for measuring or detecting O2, e.g. lambda sensors
F01N2560/025 (For measuring or detecting o2) appears on 904 US grants and 1,018 published applications in this corpus.
Search patents in F01N- Granted patents
- 904
- Published applications
- 1,018
- Assignees
- 198
- Inventors
- 1,734
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 1 |
| 2003 | 0 | 2 |
| 2004 | 2 | 8 |
| 2005 | 6 | 10 |
| 2006 | 7 | 16 |
| 2007 | 10 | 48 |
| 2008 | 12 | 66 |
| 2009 | 26 | 40 |
| 2010 | 36 | 55 |
| 2011 | 48 | 43 |
| 2012 | 57 | 39 |
| 2013 | 39 | 49 |
| 2014 | 49 | 45 |
| 2015 | 39 | 45 |
| 2016 | 53 | 64 |
| 2017 | 65 | 65 |
| 2018 | 51 | 81 |
| 2019 | 69 | 73 |
| 2020 | 78 | 82 |
| 2021 | 75 | 47 |
| 2022 | 65 | 38 |
| 2023 | 36 | 38 |
| 2024 | 29 | 21 |
| 2025 | 26 | 22 |
| 2026 | 13 | 20 |
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.
- Internal combustion engine system15 Sep 2026US 12,736,016 B2Toyota Jidosha Kabushiki Kaisha
- 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.
- Utility vehicle21 Jul 2026US 12,687,224 B2Kubota Corporation
- Feeding and exhaust system for internal combustion engine, or thermal unit, and respective method of operation13 Aug 2026US 2026/0235064 A1Rhapis S.R.L.
- Work vehicle and aftertreatment system therefor6 Aug 2026US 2026/0226857 A1Deere & Company
- Exhaust monitoring apparatus6 Aug 2026US 2026/0226858 A1Toyota Jidosha Kabushiki Kaisha
- Apparatus for diagnosing a post-processing system and a method thereof18 Jun 2026US 2026/0168424 A1AVL Software and Functions GmbH
- System and method for adaptive control of air-to-fuel ratio18 Jun 2026US 2026/0168452 A1Caterpillar Inc.
Most cited
By later US patents
- Control methods for improved catalytic converter efficiency and diagnosis67US 7,707,821 B12010
- Device for purifying exhaust gas of engine55US 5,964,088 AToyota Jidosha Kabushiki Kaisha · 1999
- DPF regeneration monitoring method51US 7,299,626 B2International Engine Intellectual Property Company, LLC · 2007
- Method and system of adaptive learning for engine exhaust gas sensors49US 6,736,120 B2Ford Global Technologies, LLC · 2004
- Exhaust purification device of internal combustion engine47US 5,471,836 AToyota Jidosha Kabushiki Kaisha · 1995