F02B 2201/06
Dual fuel applications
F02B2201/06 (Dual fuel applications) appears on 72 US grants and 43 published applications in this corpus.
Search patents in F02B- Granted patents
- 72
- Published applications
- 43
- Assignees
- 45
- Inventors
- 133
- Latest grant
- 7 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 3 | 0 |
| 1984 | 3 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 1 |
| 2002 | 6 | 3 |
| 2003 | 2 | 2 |
| 2004 | 0 | 0 |
| 2005 | 1 | 4 |
| 2006 | 2 | 1 |
| 2007 | 0 | 0 |
| 2008 | 1 | 2 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 3 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 3 | 2 |
| 2016 | 0 | 2 |
| 2017 | 1 | 3 |
| 2018 | 5 | 2 |
| 2019 | 2 | 3 |
| 2020 | 1 | 2 |
| 2021 | 3 | 3 |
| 2022 | 1 | 3 |
| 2023 | 4 | 5 |
| 2024 | 4 | 1 |
| 2025 | 0 | 2 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Systems and methods for combusting unconventional fuel chemistries in a diesel engine architecture7 Jul 2026US 12,674,409 B2Climate Energy Investments, LLC
- Internal combustion engine and ignition system with a pre-chamber8 Oct 2024US 12,110,818 B2Erfinder Technologies Limited
- Inverter generator27 Aug 2024US 12,074,503 B2Briggs & Stratton Corporation
- Systems and methods for combusting unconventional fuel chemistries in a diesel engine architecture9 Apr 2024US 11,952,936 B1ClearFlame Engines, Inc.
- Homogeneous charge compression ignition (HCCI-type) combustion system for an engine and powertrain using wet-alcohol as a fuel and including hot assist ignition23 Jan 2024US 11,879,401 B2MayMaan Research, LLC
- Mixed fuel system24 Apr 2025US 2025/0129737 A1
- Systems and methods for combusting unconventional fuel chemistries in a diesel engine architecture23 Jan 2025US 2025/0027440 A1ClearFlame Engines, Inc.
- An internal combustion engine and ignition system with a pre-chamber21 Mar 2024US 2024/0093635 A1Erfinder Technologies Limited
- Inverter generator23 Nov 2023US 2023/0378849 A1Briggs & Stratton Corporation
- Homogeneous charge compression ignition (hcci-type) combustion system for an engine and powertrain using wet-alcohol as a fuel and including hot assist ignition20 Jul 2023US 2023/0228224 A1MayMaan Research, LLC
Most cited
By later US patents
- Bi-fuel control system and retrofit assembly for diesel engines231US 6,543,395 B2Gas Technologies LLC · 2003
- Dual fuel electronic control system91US 5,224,457 ADeere & Company · 1993
- Dual fuel injection system and a method of controlling such a system77US 5,379,740 ABiocom Pty. Ltd. · 1995
- Method and apparatus for mixing liquids64US 4,452,265 A1984
- Gas-diesel dual fuel engine64US 4,603,674 AYanmar Diesel Engine Co., Ltd. · 1986