F02P 3/0556
Protecting the coil when the engine is stopped
Official title: {Protecting the coil when the engine is stopped}
F02P3/0556 (Protecting the coil when the engine is stopped) appears on 18 US grants and 10 published applications in this corpus.
Search patents in F02P- Granted patents
- 18
- Published applications
- 10
- Assignees
- 12
- Inventors
- 34
- Latest grant
- 20 Sep 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 4 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 1 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 2 |
| 2018 | 2 | 1 |
| 2019 | 0 | 2 |
| 2020 | 2 | 2 |
| 2021 | 2 | 1 |
| 2022 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Switch control circuit and igniter20 Sep 2022US 11,448,178 B2Rohm Co., Ltd.
- Circuit and method for controlling a coil current during a soft shut down2 Nov 2021US 11,162,469 B2Semiconductor Components Industries, LLC
- Circuit and method for controlling a coil current during a soft shut down2 Feb 2021US 10,907,607 B2Semiconductor Components Industries, LLC
- Engine control device17 Nov 2020US 10,837,387 B2Toyota Jidosha Kabushiki Kaisha
- Engine control device16 Jun 2020US 10,683,821 B2Toyota Jidosha Kabushiki Kaisha
- Circuit and method for controlling a coil current during a soft shut down6 May 2021US 2021/0131396 A1Semiconductor Components Industries, LLC
- Switch control circuit and igniter31 Dec 2020US 2020/0408182 A1Rohm Co., Ltd.
- Circuit and method for controlling a coil current during a soft shut down29 Oct 2020US 2020/0340441 A1Semiconductor Components Industries, LLC
- Engine control device13 Jun 2019US 2019/0178221 A1Toyota Jidosha Kabushiki Kaisha
- Engine control device13 Jun 2019US 2019/0178222 A1Toyota Jidosha Kabushiki Kaisha
Most cited
By later US patents
- Electronic ignition system47US 3,937,193 AFord Motor Company · 1976
- Input-output unit for a microprocessor engine control system19US 4,204,256 ARobert Bosch GmbH · 1980
- Transistorized ignition system for internal combustion engines10US 4,130,101 ARobert Bosch GmbH · 1978
- Automatic engine stop and start system10US 4,453,506 AToyota Jidosha Kogyo Kabushiki Kaisha · 1984
- Ignition device for internal combustion engine10US 4,893,605 AMitsubishi Denki Kabushiki Kaisha · 1990