F02B 43/12
Methods of operating
F02B43/12 (Methods of operating) appears on 140 US grants and 202 published applications in this corpus.
Search patents in F02B- Granted patents
- 140
- Published applications
- 202
- Assignees
- 94
- Inventors
- 330
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 2 |
| 2005 | 2 | 1 |
| 2006 | 0 | 1 |
| 2007 | 2 | 1 |
| 2008 | 1 | 3 |
| 2009 | 1 | 2 |
| 2010 | 0 | 4 |
| 2011 | 2 | 9 |
| 2012 | 2 | 4 |
| 2013 | 8 | 10 |
| 2014 | 5 | 8 |
| 2015 | 8 | 20 |
| 2016 | 6 | 12 |
| 2017 | 9 | 11 |
| 2018 | 6 | 17 |
| 2019 | 13 | 21 |
| 2020 | 17 | 13 |
| 2021 | 10 | 5 |
| 2022 | 8 | 14 |
| 2023 | 8 | 20 |
| 2024 | 14 | 12 |
| 2025 | 8 | 7 |
| 2026 | 5 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Varied intake valve operation for improved transient response in gaseous fuel engine22 Sep 2026US 12,742,427 B1Caterpillar Inc.
- Fuel agnostic compression ignition engine18 Aug 2026US 12,710,015 B2Climate Energy Investments, LLC
- Method of operating an internal combustion engine and corresponding arrangement16 Jun 2026US 12,655,815 B2Linde Aktiengesellschaft
- System and method for recovery of redundant gaseous fuel from a gaseous fuel supply system19 May 2026US 12,631,157 B2Volvo Truck Corporation
- Hydrogen storage power plant, and method for operating same14 Apr 2026US 12,601,289 B2Eag Automatisierungsbau GmbH
- Varied intake valve operation for improved transient response in gaseous fuel engine24 Sep 2026US 2026/0286908 A1Caterpillar Inc.
- Ammonia pre-chamber internal combustion engine17 Sep 2026US 2026/0275900 A1Regents of the University of Minnesota
- Unit management system, electric power generating unit, management support equipment, and unit management method19 Mar 2026US 2026/0078708 A1Kawasaki Motors, Ltd.
- Gaseous fuel engine strategy biasing port fuel admission along flow streamlines5 Mar 2026US 2026/0063065 A1Caterpillar Inc.
- Systems and methods for supplying gaseous ammonia to serially-connected ammonia cracking units29 Jan 2026US 2026/0028949 A1First Ammonia Motors, Inc.
Most cited
By later US patents
- System and method for operating an internal combustion engine with hydrogen blended with conventional fossil fuels44US 7,290,504 B22007
- Method for operating an engine36US 8,037,850 B2Ford Global Technologies, LLC · 2011
- Method and apparatus for controlling a fuel reformer by use of existing vehicle control signals35US 6,851,398 B2Arvin Technologies, Inc. · 2005
- Method of fuel injection26US 5,377,645 ABiocom Pty. Ltd. · 1995
- Temperature control for HHO injection gas24US 10,494,992 B2HyTech Power, LLC · 2019