F02D 2041/147
The characteristics being a hydrogen content or concentration of the exhaust gases
Official title: {the characteristics being a hydrogen content or concentration of the exhaust gases}
F02D2041/147 (The characteristics being a hydrogen content or concentration of the exhaust gases) appears on 36 US grants and 43 published applications in this corpus.
Search patents in F02D- Granted patents
- 36
- Published applications
- 43
- Assignees
- 22
- Inventors
- 120
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 1 |
| 2004 | 2 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 2 | 1 |
| 2008 | 1 | 5 |
| 2009 | 2 | 3 |
| 2010 | 1 | 4 |
| 2011 | 0 | 1 |
| 2012 | 2 | 3 |
| 2013 | 3 | 1 |
| 2014 | 5 | 1 |
| 2015 | 0 | 2 |
| 2016 | 0 | 3 |
| 2017 | 3 | 1 |
| 2018 | 1 | 0 |
| 2019 | 2 | 2 |
| 2020 | 1 | 2 |
| 2021 | 2 | 1 |
| 2022 | 0 | 0 |
| 2023 | 2 | 2 |
| 2024 | 1 | 2 |
| 2025 | 1 | 1 |
| 2026 | 1 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System and method for adaptive control of air-to-fuel ratio18 Aug 2026US 12,710,014 B2Caterpillar Inc.
- Controller for hydrogen engine18 Mar 2025US 12,253,039 B2Toyota Jidosha Kabushiki Kaisha
- Vehicle controller, vehicle control method, and storage medium29 Oct 2024US 12,129,805 B2Toyota Jidosha Kabushiki Kaisha
- Method, computing unit, and computer program for determining an amount of hydrocarbons in an exhaust gas of a lean-operation internal-combustion engine26 Dec 2023US 11,852,088 B2Robert Bosch GmbH
- System and method for producing hydrogen gas to supply internal combustion engines25 Jul 2023US 11,708,799 B1
- Method of controlling injection in a hydrogen internal combustion engine20 Aug 2026US 2026/0243207 A1Phinia Delphi Luxembourg Sarl
- System and control method6 Aug 2026US 2026/0226853 A1Komatsu Ltd.
- System and method for adaptive control of air-to-fuel ratio18 Jun 2026US 2026/0168452 A1Caterpillar Inc.
- Control device for internal combustion engine22 Jan 2026US 2026/0022674 A1Toyota Jidosha Kabushiki Kaisha
- Systems including a hydrogen internal combustion engine and aftertreatment system2 Oct 2025US 2025/0305431 A1Cummins Emission Solutions Inc.
Most cited
By later US patents
- Method and apparatus for controlling a gas-emitting process and related devices44US 7,231,290 B2E. I. Du Pont de Nemours and Company · 2007
- Closed loop control system for hydrogen fuelled engine33US 4,141,326 AThe Bendix Corporation · 1979
- Exhaust gas purifier for internal combustion engines28US 6,711,892 B2Mitsubishi Jidosha Kogyo Kabushiki Kaisha · 2004
- Method and apparatus for monitoring a catalytic converter21US 5,259,189 AABB Patent GmbH · 1993
- Catalytic converter diagnostic sensor20US 5,472,580 AGeneral Motors Corporation · 1995