F02B 47/04
The substances being other than water or steam only
Official title: the substances being other than water or steam only
F02B47/04 (The substances being other than water or steam only) appears on 496 US grants and 447 published applications in this corpus.
Search patents in F02B- Granted patents
- 496
- Published applications
- 447
- Assignees
- 219
- Inventors
- 935
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 9 | 0 |
| 1978 | 5 | 0 |
| 1979 | 3 | 0 |
| 1980 | 5 | 0 |
| 1981 | 2 | 0 |
| 1982 | 4 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 4 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 8 | 0 |
| 1996 | 6 | 0 |
| 1997 | 5 | 0 |
| 1998 | 6 | 0 |
| 1999 | 7 | 0 |
| 2000 | 10 | 0 |
| 2001 | 11 | 3 |
| 2002 | 6 | 4 |
| 2003 | 6 | 7 |
| 2004 | 10 | 19 |
| 2005 | 11 | 8 |
| 2006 | 11 | 10 |
| 2007 | 12 | 13 |
| 2008 | 8 | 18 |
| 2009 | 6 | 20 |
| 2010 | 17 | 18 |
| 2011 | 14 | 27 |
| 2012 | 19 | 30 |
| 2013 | 15 | 58 |
| 2014 | 29 | 41 |
| 2015 | 41 | 49 |
| 2016 | 30 | 15 |
| 2017 | 27 | 21 |
| 2018 | 24 | 15 |
| 2019 | 19 | 12 |
| 2020 | 16 | 22 |
| 2021 | 21 | 13 |
| 2022 | 14 | 11 |
| 2023 | 13 | 3 |
| 2024 | 5 | 0 |
| 2025 | 2 | 9 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- System and machine to improve fuel tank conditions and method of use thereof1 Sep 2026US 12,723,539 B2JD North America Corp.
- Hydrogen storage power plant, and method for operating same14 Apr 2026US 12,601,289 B2Eag Automatisierungsbau GmbH
- Non-emitting engines with oxyfuel combustion and carbon capture system25 Nov 2025US 12,480,437 B2Cummins Inc.
- System and method for using concentrated oxygen for gas intake into an internal combustion engine28 Oct 2025US 12,454,907 B2H2Diesel, Inc.
- Prechamber ignited engine and operating methods therefor17 Dec 2024US 12,168,952 B1Caterpillar Inc.
- Feeding and exhaust system for internal combustion engine, or thermal unit, and respective method of operation13 Aug 2026US 2026/0235064 A1Rhapis S.R.L.
- Fluid Supply Device and Fluid Supply Unit for Increasing Combustion Efficiency30 Oct 2025US 2025/0334082 A1Hao Wei Environmental Technology Co., Ltd.
- System and method for using concentrated oxygen for gas intake into an internal combustion engine2 Oct 2025US 2025/0305443 A1H2Diesel, Inc.
- Engine device18 Sep 2025US 2025/0290466 A1Yanmar Holdings Co., Ltd.
- System for controlling production of ozone for an internal combustion engine28 Aug 2025US 2025/0270973 A1Oxitron Technologies, LLC
Most cited
By later US patents
- Apparatus and method for reducing emissions in a dual combustion mode diesel engine156US 5,875,743 ASouthwest Research Institute · 1999
- Optimized fuel management system for direct injection ethanol enhancement of gasoline engines129US 7,225,787 B2Massachusetts Institute of Technology · 2007
- Control method for turbocharged diesel engines having exhaust gas recirculation99US 6,035,640 AFord Global Technologies, LLC · 2000
- Diesel engine equipped for reducing harmful substances in its operation83US 5,517,976 AMTU Motoren- und Turbinen-Union Friedrichshafen GmbH · 1996
- Diesel engine EGR system with exhaust gas conditioning74US 5,440,880 ANavistar International Transportation Corp. · 1995