F02D 19/12
Peculiar to engines working with non-fuel substances or with anti-knock agents
Official title: peculiar to engines working with non-fuel substances or with anti-knock agents, e.g. with anti-knock fuel
F02D19/12 (Peculiar to engines working with non-fuel substances or with anti-knock agents) appears on 267 US grants and 243 published applications in this corpus.
Search patents in F02D- Granted patents
- 267
- Published applications
- 243
- Assignees
- 126
- Inventors
- 542
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 4 | 0 |
| 1982 | 7 | 0 |
| 1983 | 10 | 0 |
| 1984 | 5 | 0 |
| 1985 | 4 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 4 | 0 |
| 1995 | 4 | 0 |
| 1996 | 4 | 0 |
| 1997 | 6 | 0 |
| 1998 | 4 | 0 |
| 1999 | 1 | 0 |
| 2000 | 4 | 0 |
| 2001 | 3 | 0 |
| 2002 | 0 | 2 |
| 2003 | 1 | 1 |
| 2004 | 1 | 4 |
| 2005 | 1 | 5 |
| 2006 | 5 | 6 |
| 2007 | 4 | 12 |
| 2008 | 8 | 8 |
| 2009 | 4 | 9 |
| 2010 | 12 | 14 |
| 2011 | 5 | 5 |
| 2012 | 4 | 10 |
| 2013 | 7 | 3 |
| 2014 | 5 | 14 |
| 2015 | 5 | 6 |
| 2016 | 5 | 9 |
| 2017 | 11 | 18 |
| 2018 | 21 | 19 |
| 2019 | 15 | 21 |
| 2020 | 14 | 15 |
| 2021 | 25 | 13 |
| 2022 | 9 | 16 |
| 2023 | 14 | 7 |
| 2024 | 5 | 6 |
| 2025 | 7 | 11 |
| 2026 | 4 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Stratified nitrogen enriched air (NEA) strategies and methods to reduce NOx emissions from engines12 May 2026US 12,624,654 B2Saudi Arabian Oil Company
- Engine lubricant optimization for advanced sustainable fuels28 Apr 2026US 12,612,880 B2ExxonMobil Technology and Engineering Company
- System and method for injecting condensate in cylinder of a reciprocating engine21 Apr 2026US 12,607,151 B2Innio Jenbacher GmbH & Co OG
- Method for operating a spark-ignition internal combustion engine and controller for carrying out the method20 Jan 2026US 12,529,344 B2Keyou GmbH
- Dual-fuel engine systems for work vehicle7 Oct 2025US 12,435,676 B1Deere & Company
- Method and Apparatus for Non-Fossil Fuel Internal Combustion Engine27 Aug 2026US 2026/0251112 A1MayMaan Research, LLC
- Method for controlling the injection of coolant into an internal combustion engine of a motor vehicle and related vehicle and computer program product25 Jun 2026US 2026/0177021 A1Ferrari S.P. A.
- Engine system and operating strategy forming engine starting charge5 Mar 2026US 2026/0063084 A1Caterpillar Inc.
- Low reactivity fuel-powered charging system5 Mar 2026US 2026/0066669 A1Caterpillar Inc.
- Method for operating an internal combustion engine and internal combustion engine19 Feb 2026US 2026/0049582 A1Dr. Ing. h,c.F. Porsche Aktiengesellschaft
Most cited
By later US patents
- Premixed charge compression ignition engine with optimal combustion control196US 6,276,334 B1Cummins Engine Company, Inc. · 2001
- Apparatus and method for reducing emissions in a dual combustion mode diesel engine156US 5,875,743 ASouthwest Research Institute · 1999
- Operation control system for internal combustion engine138US 4,993,386 AKabushiki Kaisha Toyota Chuo Kenkyusho · 1991
- Fuel supply apparatus for an internal combustion engine128US 6,711,893 B2ExxonMobil Research and Engineering Company · 2004
- Dual fuel supply system and method for an internal combustion engine116US 4,402,296 A1983