F02P 5/1527
With means allowing burning of two or more fuels
Official title: {with means allowing burning of two or more fuels, e.g. super or normal, premium or regular}
F02P5/1527 (With means allowing burning of two or more fuels) appears on 168 US grants and 110 published applications in this corpus.
Search patents in F02P- Granted patents
- 168
- Published applications
- 110
- Assignees
- 60
- Inventors
- 304
- Latest grant
- 28 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 9 | 0 |
| 1987 | 9 | 0 |
| 1988 | 2 | 0 |
| 1989 | 5 | 0 |
| 1990 | 8 | 0 |
| 1991 | 10 | 0 |
| 1992 | 5 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 1 |
| 2004 | 2 | 3 |
| 2005 | 2 | 4 |
| 2006 | 5 | 5 |
| 2007 | 7 | 7 |
| 2008 | 2 | 5 |
| 2009 | 5 | 7 |
| 2010 | 9 | 8 |
| 2011 | 6 | 8 |
| 2012 | 5 | 9 |
| 2013 | 9 | 5 |
| 2014 | 4 | 6 |
| 2015 | 5 | 7 |
| 2016 | 5 | 11 |
| 2017 | 10 | 5 |
| 2018 | 5 | 4 |
| 2019 | 8 | 2 |
| 2020 | 3 | 3 |
| 2021 | 3 | 1 |
| 2022 | 1 | 2 |
| 2023 | 1 | 2 |
| 2024 | 3 | 2 |
| 2025 | 1 | 2 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for operating an internal combustion engine28 Apr 2026US 12,612,879 B2Innio Jenbacher GmbH & Co OG
- Natural gas engines with fuel quality determination8 Jul 2025US 12,352,221 B2Inpro/Seal LLC
- Natural gas engines with fuel quality determination2 Jul 2024US 12,025,063 B2Inpro/Seal LLC
- Methods and systems for engine14 May 2024US 11,982,246 B2Transportation IP Holdings, LLC
- Ignition timing control device and control method19 Mar 2024US 11,933,259 B2Yamaha Hatsudoki Kabushiki Kaisha
- Method for operating an internal combustion engine5 Feb 2026US 2026/0036096 A1Innio Jenbacher GmbH & Co OG
- Natural Gas Engines With Fuel Quality Determination2 Oct 2025US 2025/0305461 A1Inpro/Seal LLC
- Engine combustion control system26 Jun 2025US 2025/0207552 A1Mazda Motor Corporation
- Natural Gas Engines With Fuel Quality Determination12 Dec 2024US 2024/0410322 A1Inpro/Seal LLC
- Natural gas engines with fuel quality determination4 Apr 2024US 2024/0110525 A1EControls, LLC
Most cited
By later US patents
- Ignition timing control apparatus for an internal combustion engine169US 4,913,116 AHitachi Automotive Engineering Co., Ltd. · 1990
- Internal combustion engine137US 6,990,956 B2Toyota Jidosha Kabushiki Kaisha · 2006
- Burning control system for engine48US 5,365,908 AYamaha Hatsudoki Kabushiki Kaisha · 1994
- Anti-knocking in internal combustion engine45US 4,711,212 ANippondenso Co., Ltd. · 1987
- System and method for controlling ignition timing for internal combustion engine in which alcohol is mixed with gasoline40US 5,050,555 ANissan Motor Co., Ltd. · 1991