F02D 41/0037
For diagnosing the engine
Official title: {for diagnosing the engine (diagnosis of purge control systems F02M25/0809)}
F02D41/0037 (For diagnosing the engine) appears on 67 US grants and 64 published applications in this corpus.
Search patents in F02D- Granted patents
- 67
- Published applications
- 64
- Assignees
- 28
- Inventors
- 110
- Latest grant
- 20 May 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 1 | 1 |
| 2003 | 0 | 1 |
| 2004 | 3 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 1 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 2 |
| 2012 | 0 | 1 |
| 2013 | 0 | 1 |
| 2014 | 3 | 3 |
| 2015 | 1 | 6 |
| 2016 | 3 | 3 |
| 2017 | 5 | 8 |
| 2018 | 7 | 7 |
| 2019 | 9 | 15 |
| 2020 | 11 | 7 |
| 2021 | 11 | 1 |
| 2022 | 0 | 1 |
| 2023 | 5 | 2 |
| 2024 | 0 | 1 |
| 2025 | 1 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Systems and methods for a fuel refill pressure relief valve20 May 2025US 12,305,776 B2Ford Global Technologies, LLC
- Fuel vapor treatment apparatus12 Dec 2023US 11,840,990 B2Toyota Jidosha Kabushiki Kaisha
- Fuel reactant leak detection system and method of detecting fuel reactant leaks14 Nov 2023US 11,814,027 B2Toyota Motor Engineering & Manufacturing North America, Inc.
- Systems and methods for evaporative emissions systems13 Jun 2023US 11,674,469 B1Ford Global Technologies, LLC
- Fuel vapor treatment apparatus10 Jan 2023US 11,549,467 B2Toyota Jidosha Kabushiki Kaisha
- Diagnostic apparatus for engine system5 Mar 2026US 2026/0063085 A1Toyota Jidosha Kabushiki Kaisha
- Systems and methods for a fuel refill pressure relief valve12 Dec 2024US 2024/0410494 A1Ford Global Technologies, LLC
- Fuel reactant leak detection system and method of detecting fuel reactant leaks10 Aug 2023US 2023/0249672 A1Toyota Motor Engineering & Manufacturing North America, Inc.
- Fuel vapor treatment apparatus30 Mar 2023US 2023/0099338 A1Toyota Jidosha Kabushiki Kaisha
- Fuel vapor filter purging of a supercharged internal combustion engine in induction mode6 Jan 2022US 2022/0003191 A1Volkswagen Aktiengesellschaft
Most cited
By later US patents
- Combustible-gas sensor, diagnostic device for intake-oxygen concentration sensor, and air-fuel ratio control device for internal combustion engines63US 6,739,177 B2Nippon Soken, Inc. · 2004
- Evaporative emissions system check valve monitor for GTDI engines24US 9,957,924 B2Ford Global Technologies, LLC · 2018
- Methods and system for diagnosing sensors by utilizing an evaporative emissions system23US 10,054,070 B2Ford Global Technologies, LLC · 2018
- Systems and methods for on-board cylinder leakdown testing22US 10,100,770 B2Ford Global Technologies, LLC · 2018
- Systems and methods for diagnosing components in a vehicle evaporative emissions system21US 10,451,010 B2Ford Global Technologies, LLC · 2019