F02D 41/1452
The characteristics being a cox content or concentration
Official title: {the characteristics being a COx content or concentration}
F02D41/1452 (The characteristics being a cox content or concentration) appears on 105 US grants and 105 published applications in this corpus.
Search patents in F02D- Granted patents
- 105
- Published applications
- 105
- Assignees
- 63
- Inventors
- 265
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 1 |
| 2002 | 1 | 0 |
| 2003 | 2 | 5 |
| 2004 | 1 | 1 |
| 2005 | 3 | 3 |
| 2006 | 3 | 3 |
| 2007 | 2 | 4 |
| 2008 | 1 | 0 |
| 2009 | 0 | 1 |
| 2010 | 2 | 3 |
| 2011 | 1 | 4 |
| 2012 | 4 | 6 |
| 2013 | 5 | 0 |
| 2014 | 2 | 5 |
| 2015 | 3 | 5 |
| 2016 | 0 | 4 |
| 2017 | 6 | 4 |
| 2018 | 5 | 6 |
| 2019 | 5 | 12 |
| 2020 | 11 | 13 |
| 2021 | 10 | 7 |
| 2022 | 8 | 7 |
| 2023 | 9 | 5 |
| 2024 | 4 | 2 |
| 2025 | 3 | 2 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- CO2 mass estimation system, exhaust gas composition ratio estimation method, and CO2 mass estimation method12 May 2026US 12,625,107 B2NGK Insulators, Ltd.
- Camless reciprocating engine control system10 Mar 2026US 12,571,356 B2Adaptive Camless Technology, LLC
- Carbon monoxide detecting system for internal combustion engine-based machines23 Dec 2025US 12,503,984 B2Generac Power Systems, Inc.
- Vehicle with gasoline particulate filter soot regeneration strategy with criteria emission reduction for low NOX emissions19 Aug 2025US 12,392,300 B1GM Global Technology Operations LLC
- Work vehicle power system with low carbon fuel blends8 Apr 2025US 12,270,354 B2Deere & Company
- Carbon monoxide detecting system for internal combustion engine-based machines23 Jul 2026US 2026/0210305 A1Generac Power Systems, Inc.
- Method and apparatus for controlling an engine of a vehicle5 Mar 2026US 2026/0063088 A1Hyundai Motor Company
- Flue Gas Analysis Device11 Dec 2025US 2025/0377345 A1Seitron S.P.A.
- Camless reciprocating engine control system20 Feb 2025US 2025/0059925 A1Adaptive Camless Technology, LLC
- Carbon monoxide detecting system for internal combustion engine-based machines15 Aug 2024US 2024/0271578 A1Generac Power Systems, Inc.
Most cited
By later US patents
- Low emission, diesel-cycle engine158US 6,470,682 B2The United States of America as represented by the Administrator of the United States Environmental Protection Agency · 2002
- Low emission, diesel-cycle engine146US 6,301,888 B1The United States of America as represented by the Administrator of the Environmental Protection Agency · 2001
- Air/fuel control with on-board emission measurement118US 5,452,576 AFord Motor Company · 1995
- Use of sensors in a state observer for a diesel engine82US 7,155,334 B1Honeywell International Inc. · 2006
- Catalytic converter function detection59US 6,857,262 B2SPX Corporation · 2005