F02N 19/06
By heating of combustion-air by flame generating means
Official title: by heating of combustion-air by flame generating means, e.g. flame glow-plugs
F02N19/06 (By heating of combustion-air by flame generating means) appears on 57 US grants and 12 published applications in this corpus.
Search patents in F02N- Granted patents
- 57
- Published applications
- 12
- Assignees
- 36
- Inventors
- 103
- Latest grant
- 16 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 4 | 0 |
| 1994 | 2 | 0 |
| 1995 | 4 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 4 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 2 |
| 2012 | 1 | 0 |
| 2013 | 1 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 0 |
| 2016 | 1 | 1 |
| 2017 | 1 | 0 |
| 2018 | 0 | 1 |
| 2019 | 1 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
| 2022 | 1 | 0 |
| 2023 | 1 | 1 |
| 2024 | 1 | 0 |
| 2025 | 2 | 2 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- 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
- Work vehicle6 Aug 2024US 12,055,089 B2Kubota Corporation
- Control method and apparatus applied to controller16 May 2023US 11,649,790 B1Weichai Power Co., Ltd.
- Method for transmitting data from a sensor to a receiver5 Apr 2022US 11,293,397 B2Volkswagen Aktiengesellschaft
- Process for fast start of a hydrogen generator5 Mar 2026US 2026/0063097 A1Precision Combustion, Inc.
- Method of Starting a Compression Ignition Engine11 Sep 2025US 2025/0283443 A1Caterpiltar Inc.
- Precombustion chamber igniter and cold start control method for methanol engine8 May 2025US 2025/0146435 A1Tianjin University
- Work vehicle7 Dec 2023US 2023/0392540 A1Kubota Corporation
- Method for transmitting data from a sensor to a receiver24 Jun 2021US 2021/0190028 A1Volkswagen Aktiengesellschaft
Most cited
By later US patents
- Spark plug heater control system for internal combustion engine60US 5,230,309 AHonda Giken Kogyo Kabushiki Kaisha · 1993
- Cold start engine control apparatus and method59US 5,894,832 AHitachi America, Ltd., Research and Development Division · 1999
- Cold start fuel injector with heater35US 5,529,035 AHitachi America, Ltd. · 1996
- Air intake heating and diagnostic system for internal combustion engines28US 5,482,013 ACummins Engine Company, Inc. · 1996
- Glow plug for internal combustion engines21US 4,459,948 ABeru-Werk Albert Ruprecht GmbH & Co., K.G. · 1984