F02D 2041/2027
Control of the current by pulse width modulation or duty cycle control
Official title: {Control of the current by pulse width modulation or duty cycle control}
F02D2041/2027 (Control of the current by pulse width modulation or duty cycle control) appears on 383 US grants and 331 published applications in this corpus.
Search patents in F02D- Granted patents
- 383
- Published applications
- 331
- Assignees
- 160
- Inventors
- 857
- Latest grant
- 3 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 3 | 0 |
| 1985 | 4 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 6 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 7 | 0 |
| 1999 | 11 | 0 |
| 2000 | 9 | 0 |
| 2001 | 8 | 2 |
| 2002 | 5 | 3 |
| 2003 | 5 | 12 |
| 2004 | 13 | 16 |
| 2005 | 11 | 12 |
| 2006 | 12 | 17 |
| 2007 | 11 | 12 |
| 2008 | 18 | 12 |
| 2009 | 8 | 26 |
| 2010 | 12 | 22 |
| 2011 | 12 | 23 |
| 2012 | 22 | 20 |
| 2013 | 15 | 12 |
| 2014 | 19 | 20 |
| 2015 | 11 | 21 |
| 2016 | 16 | 17 |
| 2017 | 15 | 16 |
| 2018 | 22 | 11 |
| 2019 | 15 | 17 |
| 2020 | 22 | 10 |
| 2021 | 10 | 9 |
| 2022 | 18 | 10 |
| 2023 | 6 | 3 |
| 2024 | 6 | 4 |
| 2025 | 4 | 1 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Oxygen sensor heater control for hybrid vehicle3 Mar 2026US 12,565,864 B2Fca US LLC
- Engine ignition systems and control methods therefor2 Dec 2025US 12,486,822 B2Hamilton Sundstrand Corporation
- Systems and methods for providing redundant pulse-width modulation (PWM) throttle control30 Sep 2025US 12,429,006 B2Kodiak Robotics, Inc.
- Method for controlling a wastegate valve of a turbocharger8 Jul 2025US 12,352,201 B1Brp-Rotax GmbH & Co. KG
- Fuel injection control device14 Jan 2025US 12,196,146 B2Hitachi Astemo, Ltd.
- Temperature control system for hot surface igniter21 May 2026US 2026/0139835 A1Chongqing Le-Mark Technology Co
- Duty cycle control for metering valve30 Apr 2026US 2026/0117723 A1Caterpillar Inc.
- Hot surface igniter temperature control system and method26 Mar 2026US 2026/0086587 A1Chongqing Le-Mark Technology Co
- Oxygen sensor heater control for hybrid vehicle5 Jun 2025US 2025/0179968 A1Fca US LLC
- Systems and methods for providing redundant pulse-width modulation (pwm) throttle control19 Sep 2024US 2024/0309823 A1Kodiak Robotics, Inc.
Most cited
By later US patents
- Internal combustion engine control for improved fuel efficiency214US 8,099,224 B2Tula Technology, Inc. · 2012
- Internal combustion engine control for improved fuel efficiency109US 8,131,445 B2Tula Technology, Inc. · 2012
- Valve controller systems and methods and fuel injection systems utilizing the same76US 5,954,030 A1999
- Valve controller systems and methods and fuel injection systems utilizing the same60US 5,720,261 A1998
- Internal combustion engine control for improved fuel efficiency60US 8,616,181 B2Tula Technology, Inc. · 2013