F02P 19/025
With means for determining glow plug temperature or glow plug resistance
Official title: {with means for determining glow plug temperature or glow plug resistance}
F02P19/025 (With means for determining glow plug temperature or glow plug resistance) appears on 108 US grants and 82 published applications in this corpus.
Search patents in F02P- Granted patents
- 108
- Published applications
- 82
- Assignees
- 38
- Inventors
- 186
- Latest grant
- 17 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 5 | 0 |
| 1986 | 2 | 0 |
| 1987 | 5 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 1 |
| 2002 | 1 | 1 |
| 2003 | 1 | 2 |
| 2004 | 2 | 2 |
| 2005 | 2 | 3 |
| 2006 | 2 | 2 |
| 2007 | 2 | 2 |
| 2008 | 2 | 5 |
| 2009 | 3 | 12 |
| 2010 | 3 | 8 |
| 2011 | 8 | 12 |
| 2012 | 5 | 2 |
| 2013 | 5 | 5 |
| 2014 | 6 | 8 |
| 2015 | 5 | 5 |
| 2016 | 9 | 2 |
| 2017 | 5 | 0 |
| 2018 | 2 | 2 |
| 2019 | 1 | 2 |
| 2020 | 2 | 0 |
| 2021 | 0 | 0 |
| 2022 | 1 | 1 |
| 2023 | 1 | 0 |
| 2024 | 0 | 1 |
| 2025 | 0 | 1 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for diagnosing faults in the operation of a fuel heating system associated with an internal combustion engine17 Mar 2026US 12,577,920 B2Robert Bosch Limitada
- Method and system for glow plug operation29 Aug 2023US 11,739,693 B2Pratt & Whitney Canada Corp.
- Method for regulating the temperature of a glow plug15 Mar 2022US 11,274,647 B2BorgWarner Ludwigsburg GmbH
- Method for regulating the surface temperature of a glow plug23 Jun 2020US 10,690,108 B2BorgWarner Ludwigsburg GmbH
- Control apparatus and control method for diesel engine21 Apr 2020US 10,626,810 B2Nissan Motor Co., Ltd.
- Temperature-controllable glow plug assisted compression ignition methanol engine and control method thereof23 Jul 2026US 2026/0210322 A1Taiyuan University of Technology
- Temperature control system for hot surface igniter21 May 2026US 2026/0139835 A1Chongqing Le-Mark Technology Co
- Hot surface igniter temperature control system and method26 Mar 2026US 2026/0086587 A1Chongqing Le-Mark Technology Co
- Method for diagnosing faults in the operation of a fuel heating system associated with an internal combustion engine27 Feb 2025US 2025/0067228 A1Robert Bosch Limitada
- Four-wire electric heating and ignition device capable of temperature measurement5 Dec 2024US 2024/0401806 A1Chongqing Le-Mark Technology Co
Most cited
By later US patents
- Electrical starting system for diesel engines68US 6,148,258 ANartron Corporation · 2000
- System and method to control energy supply to an electrically heated zone33US 4,669,430 ARobert Bosch GmbH · 1987
- Glow plug alternator control33US 4,858,576 ACaterpillar Inc. · 1989
- Heating circuit31US 4,002,882 A1977
- Gas turbine engine29US 6,247,300 B1Honda Giken Kogyo Kabushiki Kaisha · 2001