F02N 19/02
Aiding engine start by thermal means
Official title: Aiding engine start by thermal means, e.g. using lighted wicks
F02N19/02 (Aiding engine start by thermal means) appears on 468 US grants and 331 published applications in this corpus.
Search patents in F02N- Granted patents
- 468
- Published applications
- 331
- Assignees
- 241
- Inventors
- 955
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 12 | 0 |
| 1977 | 8 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 12 | 0 |
| 1981 | 9 | 0 |
| 1982 | 14 | 0 |
| 1983 | 17 | 0 |
| 1984 | 12 | 0 |
| 1985 | 7 | 0 |
| 1986 | 6 | 0 |
| 1987 | 6 | 0 |
| 1988 | 7 | 0 |
| 1989 | 9 | 0 |
| 1990 | 5 | 0 |
| 1991 | 8 | 0 |
| 1992 | 8 | 0 |
| 1993 | 6 | 0 |
| 1994 | 7 | 0 |
| 1995 | 10 | 0 |
| 1996 | 10 | 0 |
| 1997 | 6 | 0 |
| 1998 | 5 | 0 |
| 1999 | 7 | 0 |
| 2000 | 9 | 0 |
| 2001 | 8 | 2 |
| 2002 | 8 | 13 |
| 2003 | 10 | 6 |
| 2004 | 6 | 16 |
| 2005 | 8 | 5 |
| 2006 | 7 | 15 |
| 2007 | 7 | 10 |
| 2008 | 6 | 11 |
| 2009 | 5 | 21 |
| 2010 | 8 | 11 |
| 2011 | 7 | 9 |
| 2012 | 11 | 11 |
| 2013 | 4 | 12 |
| 2014 | 12 | 20 |
| 2015 | 10 | 28 |
| 2016 | 12 | 17 |
| 2017 | 18 | 22 |
| 2018 | 20 | 24 |
| 2019 | 20 | 29 |
| 2020 | 24 | 9 |
| 2021 | 15 | 6 |
| 2022 | 15 | 12 |
| 2023 | 8 | 6 |
| 2024 | 9 | 4 |
| 2025 | 4 | 4 |
| 2026 | 3 | 8 |
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
- Internal combustion engine7 Jul 2026US 12,674,433 B2Toyota Jidosha Kabushiki Kaisha
- Heating device20 Jan 2026US 12,528,338 B2Valeo Automotive Air Conditioning Hubei Co., Ltd.
- Method of starting a compression ignition engine16 Dec 2025US 12,497,939 B2Caterpillar Inc.
- Precombustion chamber igniter and cold start control method for methanol engine9 Sep 2025US 12,410,743 B2Tianjin University
- Efficient heating management system integrated to a diesel engine generator using heat obtained from an external heat source to economically heat the engine block coolant6 Aug 2026US 2026/0226877 A1Panoteknik Jenerator Elektrik Sanayi Ve Ticaret Limited Sirketi
- Temperature-controllable glow plug assisted compression ignition methanol engine and control method thereof23 Jul 2026US 2026/0210322 A1Taiyuan University of Technology
- A computer-implemented method for initiating preconditioning of a vehicle system or component9 Jul 2026US 2026/0192627 A1
- Parking Heater with High Energy Utilization Rate30 Apr 2026US 2026/0116151 A1Rui'an Ruihai Automotive Heater Manufacturing Co., Ltd
- Power indicator for use with electrical cables16 Apr 2026US 2026/0106418 A1DCD Enterprises, LLC
Most cited
By later US patents
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- Surgical stapling instruments having a releasable staple-forming pocket2,400US 7,438,209 B1Ethicon Endo-Surgery, Inc. · 2008
- Staple cartridge cavity configurations2,227US 8,590,762 B2Ethicon Endo-Surgery, Inc. · 2013
- Surgical stapling systems and staple cartridges for deploying surgical staples with tissue compression features2,208US 8,186,560 B2Ethicon Endo-Surgery, Inc. · 2012
- Washer for use with a surgical stapling instrument2,143US 7,669,747 B2Ethicon Endo-Surgery, Inc. · 2010