F02B 43/10
Engines or plants characterised by use of other specific gases
Official title: Engines or plants characterised by use of other specific gases, e.g. acetylene, oxyhydrogen
F02B43/10 (Engines or plants characterised by use of other specific gases) appears on 776 US grants and 816 published applications in this corpus.
Search patents in F02B- Granted patents
- 776
- Published applications
- 816
- Assignees
- 396
- Inventors
- 1,545
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 15 | 0 |
| 1977 | 17 | 0 |
| 1978 | 8 | 0 |
| 1979 | 5 | 0 |
| 1980 | 7 | 0 |
| 1981 | 6 | 0 |
| 1982 | 10 | 0 |
| 1983 | 11 | 0 |
| 1984 | 11 | 0 |
| 1985 | 6 | 0 |
| 1986 | 5 | 0 |
| 1987 | 1 | 0 |
| 1988 | 4 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 11 | 0 |
| 1993 | 9 | 0 |
| 1994 | 8 | 0 |
| 1995 | 16 | 0 |
| 1996 | 3 | 0 |
| 1997 | 8 | 0 |
| 1998 | 10 | 0 |
| 1999 | 9 | 0 |
| 2000 | 9 | 0 |
| 2001 | 17 | 0 |
| 2002 | 6 | 19 |
| 2003 | 14 | 31 |
| 2004 | 20 | 22 |
| 2005 | 17 | 15 |
| 2006 | 15 | 18 |
| 2007 | 12 | 13 |
| 2008 | 8 | 20 |
| 2009 | 11 | 32 |
| 2010 | 19 | 34 |
| 2011 | 12 | 42 |
| 2012 | 28 | 40 |
| 2013 | 30 | 34 |
| 2014 | 23 | 48 |
| 2015 | 29 | 42 |
| 2016 | 24 | 49 |
| 2017 | 29 | 45 |
| 2018 | 33 | 46 |
| 2019 | 40 | 40 |
| 2020 | 36 | 30 |
| 2021 | 29 | 21 |
| 2022 | 19 | 29 |
| 2023 | 34 | 50 |
| 2024 | 33 | 36 |
| 2025 | 23 | 31 |
| 2026 | 20 | 29 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Hybrid hydrogen fuel cell combustor power system6 Oct 2026US 12,755,989 B2Caterpillar Inc.
- Varied intake valve operation for improved transient response in gaseous fuel engine22 Sep 2026US 12,742,427 B1Caterpillar Inc.
- Blow-by gas processing apparatus, internal combustion engine, and supercharger18 Aug 2026US 12,710,003 B2IHI Corporation
- Fuel agnostic compression ignition engine18 Aug 2026US 12,710,015 B2Climate Energy Investments, LLC
- Pre-chamber combustion systems and methods11 Aug 2026US 12,704,088 B2M2X Energy Inc.
- High pressure gas compresor environmental recovery system8 Oct 2026US 2026/0309137 A1Flowco MasterCo LLC
- Varied intake valve operation for improved transient response in gaseous fuel engine24 Sep 2026US 2026/0286908 A1Caterpillar Inc.
- Lubricating fluid for internal combustion engines fueled with alternative combustion fuels having high auto-ignition temperatures17 Sep 2026US 2026/0275226 A1Afton Chemical Corporation
- Ammonia pre-chamber internal combustion engine17 Sep 2026US 2026/0275900 A1Regents of the University of Minnesota
- Spark ignition systems for opposed piston engines and related methods17 Sep 2026US 2026/0275901 A1Enginuity Power Systems, Inc.
Most cited
By later US patents
- System for fueling electric powered hydraulic fracturing equipment with multiple fuel sources255US 10,020,711 B2U.S. Well Services, LLC · 2018
- Method and apparatus for operation of combustion engines205US 6,155,212 A2000
- System comprising duel-fuel and after treatment for heavy-heavy duty diesel (HHDD) engines180US 10,287,943 B1Clean Power Technologies, LLC · 2019
- Reformed natural gas for powering an internal combustion engine177US 6,508,209 B12003
- Compressor and engine efficiency system and method168US 4,330,237 AMichigan Consolidated Gas Company · 1982