F02D 41/1451
The sensor being an optical sensor
Official title: {the sensor being an optical sensor}
F02D41/1451 (The sensor being an optical sensor) appears on 47 US grants and 30 published applications in this corpus.
Search patents in F02D- Granted patents
- 47
- Published applications
- 30
- Assignees
- 34
- Inventors
- 91
- Latest grant
- 10 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 4 | 0 |
| 1989 | 4 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 2 |
| 2004 | 1 | 2 |
| 2005 | 1 | 1 |
| 2006 | 2 | 3 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 2 | 0 |
| 2010 | 1 | 1 |
| 2011 | 0 | 2 |
| 2012 | 0 | 1 |
| 2013 | 1 | 0 |
| 2014 | 2 | 0 |
| 2015 | 0 | 3 |
| 2016 | 1 | 0 |
| 2017 | 2 | 4 |
| 2018 | 2 | 1 |
| 2019 | 3 | 3 |
| 2020 | 1 | 2 |
| 2021 | 2 | 1 |
| 2022 | 1 | 2 |
| 2023 | 1 | 0 |
| 2024 | 2 | 0 |
| 2025 | 0 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Camless reciprocating engine control system10 Mar 2026US 12,571,356 B2Adaptive Camless Technology, LLC
- Engine control system26 Mar 2024US 11,939,931 B2Perkins Engines Company Limited
- Method, apparatus, and system for controlling natural gas engine operation based on fuel properties27 Feb 2024US 11,913,392 B2Cummins Inc.
- Exhaust gas analyzer, and exhaust gas analysis method11 Jul 2023US 11,698,338 B2Horiba, Ltd.
- Method for sensing a fuel composition to restrict the usability of a vehicle in the event of a misfueling13 Sep 2022US 11,441,508 B2Volkswagen Aktiengesellschaft
- Camless reciprocating engine control system20 Feb 2025US 2025/0059925 A1Adaptive Camless Technology, LLC
- Engine Control System30 Jun 2022US 2022/0205404 A1Perkins Engines Company Limited
- Method, apparatus, and system for controlling natural gas engine operation based on fuel properties13 Jan 2022US 2022/0010740 A1Cummins Inc.
- Method for sensing a fuel composition to restrict the usability of a vehicle in the event of a misfueling18 Mar 2021US 2021/0079863 A1Volkswagen Aktiengesellschaft
- Exhaust gas analyzer, and exhaust gas analysis method10 Dec 2020US 2020/0386678 A1Horiba, Ltd.
Most cited
By later US patents
- Means and method for measuring and controlling smoke from an internal combustion engine53US 5,076,237 ABarrack Technology Limited · 1991
- Sensor for mixing ratio of gasoline and alcohol35US 4,770,129 ANgk Spark Plug Co., Ltd. · 1988
- Electronically controlled fuel injection system29US 4,541,272 A1985
- Control apparatus for internal combustion engines29US 4,887,574 AHitachi, Ltd. · 1989
- Oxygen sensor based on optical detection26US 4,764,343 AGeneral Motors Corporation · 1988