F02D 41/222
Relating to the failure of sensors or parameter detection devices
Official title: {relating to the failure of sensors or parameter detection devices}
F02D41/222 (Relating to the failure of sensors or parameter detection devices) appears on 1,266 US grants and 1,135 published applications in this corpus.
Search patents in F02D- Granted patents
- 1,266
- Published applications
- 1,135
- Assignees
- 225
- Inventors
- 2,334
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 6 | 0 |
| 1985 | 12 | 0 |
| 1986 | 10 | 0 |
| 1987 | 2 | 0 |
| 1988 | 12 | 0 |
| 1989 | 6 | 0 |
| 1990 | 4 | 0 |
| 1991 | 12 | 0 |
| 1992 | 13 | 0 |
| 1993 | 10 | 0 |
| 1994 | 7 | 0 |
| 1995 | 7 | 0 |
| 1996 | 5 | 0 |
| 1997 | 14 | 0 |
| 1998 | 9 | 0 |
| 1999 | 22 | 0 |
| 2000 | 15 | 0 |
| 2001 | 20 | 11 |
| 2002 | 23 | 28 |
| 2003 | 38 | 44 |
| 2004 | 39 | 32 |
| 2005 | 34 | 29 |
| 2006 | 38 | 48 |
| 2007 | 37 | 28 |
| 2008 | 27 | 38 |
| 2009 | 26 | 50 |
| 2010 | 33 | 56 |
| 2011 | 33 | 57 |
| 2012 | 45 | 59 |
| 2013 | 51 | 67 |
| 2014 | 54 | 52 |
| 2015 | 68 | 57 |
| 2016 | 60 | 86 |
| 2017 | 66 | 67 |
| 2018 | 68 | 75 |
| 2019 | 87 | 65 |
| 2020 | 63 | 54 |
| 2021 | 72 | 39 |
| 2022 | 43 | 25 |
| 2023 | 19 | 23 |
| 2024 | 28 | 23 |
| 2025 | 24 | 10 |
| 2026 | 3 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method and apparatus for detecting the operation of an engine-independent auxiliary heater and for diagnosing a coolant temperature of a motor vehicle4 Aug 2026US 12,697,855 B2Volkswagen Aktiengesellschaft
- Methods and systems for detecting high friction within flow control devices14 Jul 2026US 12,680,518 B2Cummins Inc.
- Method of fuel injector management based on cylinder knock detection and vehicle including the same17 Mar 2026US 12,577,921 B1GM Global Technology Operations LLC
- Detection method for detecting a speed sensing anomaly of an internal combustion engine and device for detecting the speed sensing anomaly30 Dec 2025US 12,510,038 B2Caterpillar Energy Solutions GmbH
- System for checking a correct mounting of a sensor30 Dec 2025US 12,510,039 B2Liebherr-Components Colmar SAS
- Method for determining condition of exhaust system, and device for determining condition of exhaust system3 Sep 2026US 2026/0258746 A1Nissan Motor Co., Ltd.
- Method for operating a drive device for a motor vehicle and corresponding drive device27 Aug 2026US 2026/0251101 A1Audi AG
- Carbon monoxide detecting system for internal combustion engine-based machines23 Jul 2026US 2026/0210305 A1Generac Power Systems, Inc.
- Fuel pressure measurement and related processes, systems, and controls25 Jun 2026US 2026/0177015 A1Cummins-Scania HPCR System, LLC
- Methods and systems for diagnosing four oxygen sensor system18 Jun 2026US 2026/0168456 A1Ford Global Technologies, LLC
Most cited
By later US patents
- Method for diagnosing abnormality of sensor107US 5,235,527 AToyota Jidosha Kabushiki Kaisha · 1993
- Turbocharger compressor diagnostic system101US 6,298,718 B1Cummins Engine Company, Inc. · 2001
- Engine protection system96US 5,070,832 ACummins Engine Company, Inc. · 1991
- Engine and emission monitoring and control system utilizing gas sensors96US 5,426,934 AHitachi America, Ltd. · 1995
- Self-diagnosing apparatus and method for determining occurence of failure in inner cylinder pressure responsive sensor applicable to engine combustion detecting/controlling system94US 5,469,735 AUnisia Jecs Corporation · 1995