F02D 41/0035
To achieve a special effect
Official title: {to achieve a special effect, e.g. to warm up the catalyst}
F02D41/0035 (To achieve a special effect) appears on 158 US grants and 136 published applications in this corpus.
Search patents in F02D- Granted patents
- 158
- Published applications
- 136
- Assignees
- 48
- Inventors
- 234
- Latest grant
- 4 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 9 | 3 |
| 2002 | 2 | 2 |
| 2003 | 3 | 2 |
| 2004 | 5 | 3 |
| 2005 | 1 | 1 |
| 2006 | 3 | 0 |
| 2007 | 2 | 2 |
| 2008 | 1 | 1 |
| 2009 | 1 | 2 |
| 2010 | 1 | 1 |
| 2011 | 0 | 3 |
| 2012 | 1 | 1 |
| 2013 | 1 | 3 |
| 2014 | 4 | 5 |
| 2015 | 4 | 12 |
| 2016 | 6 | 8 |
| 2017 | 12 | 18 |
| 2018 | 14 | 13 |
| 2019 | 18 | 25 |
| 2020 | 21 | 17 |
| 2021 | 20 | 2 |
| 2022 | 3 | 4 |
| 2023 | 11 | 5 |
| 2024 | 1 | 1 |
| 2025 | 2 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Methods and systems for an evaporative emission system4 Nov 2025US 12,460,608 B2Ford Global Technologies, LLC
- Systems and methods for a fuel refill pressure relief valve20 May 2025US 12,305,776 B2Ford Global Technologies, LLC
- Method for controlling powertrain of hybrid vehicle15 Oct 2024US 12,115,969 B2Hyundai Motor Company
- Fuel vapor treatment apparatus12 Dec 2023US 11,840,990 B2Toyota Jidosha Kabushiki Kaisha
- Method and system for deicing an engine21 Nov 2023US 11,821,378 B2Ford Global Technologies, LLC
- Diagnostic apparatus for engine system5 Mar 2026US 2026/0063085 A1Toyota Jidosha Kabushiki Kaisha
- Methods and systems for an evaporative emission system27 Feb 2025US 2025/0067232 A1Ford Global Technologies, LLC
- 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.
- Method and system for fuel system15 Jun 2023US 2023/0184184 A1Ford Global Technologies, LLC
Most cited
By later US patents
- Cold start fuel control system71US 5,482,023 AHitachi America, Ltd., Research and Development Division · 1996
- 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
- Torque control for engine during cylinder activation or deactivation39US 7,028,670 B2Ford Global Technologies, LLC · 2006
- Catalytic treatment of engine exhaust gas36US 5,806,304 AOrbital Engine Company (Australia) Pty. Limited · 1998
- Method for controlling an engine to obtain rapid catalyst heating29US 7,032,572 B2Ford Global Technologies, LLC · 2006