F02M 25/10
Adding acetylene, non-waterborne hydrogen, non-airborne oxygen, or ozone
Official title: adding acetylene, non-waterborne hydrogen, non-airborne oxygen, or ozone
F02M25/10 (Adding acetylene, non-waterborne hydrogen, non-airborne oxygen, or ozone) appears on 623 US grants and 724 published applications in this corpus.
Search patents in F02M- Granted patents
- 623
- Published applications
- 724
- Assignees
- 309
- Inventors
- 1,200
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 6 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 5 | 0 |
| 1983 | 6 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 7 | 0 |
| 1993 | 4 | 0 |
| 1994 | 2 | 0 |
| 1995 | 6 | 0 |
| 1996 | 4 | 0 |
| 1997 | 8 | 0 |
| 1998 | 7 | 0 |
| 1999 | 12 | 0 |
| 2000 | 11 | 0 |
| 2001 | 13 | 5 |
| 2002 | 11 | 10 |
| 2003 | 16 | 18 |
| 2004 | 11 | 23 |
| 2005 | 15 | 20 |
| 2006 | 17 | 28 |
| 2007 | 22 | 38 |
| 2008 | 24 | 43 |
| 2009 | 22 | 39 |
| 2010 | 23 | 56 |
| 2011 | 21 | 56 |
| 2012 | 22 | 39 |
| 2013 | 30 | 32 |
| 2014 | 24 | 36 |
| 2015 | 24 | 33 |
| 2016 | 30 | 34 |
| 2017 | 26 | 39 |
| 2018 | 20 | 27 |
| 2019 | 30 | 40 |
| 2020 | 30 | 22 |
| 2021 | 28 | 17 |
| 2022 | 11 | 23 |
| 2023 | 18 | 13 |
| 2024 | 13 | 11 |
| 2025 | 12 | 15 |
| 2026 | 8 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Hydrogen mixed-combustion electronic control device and power generation system using same15 Sep 2026US 12,736,014 B2Hitachi, Ltd.
- System for controlling production of ozone for an internal combustion engine7 Jul 2026US 12,674,430 B2Oxitron Technologies, LLC
- Performance enhancement of a platinum-containing catalyst via exhaust gas hydrogen enrichment16 Jun 2026US 12,654,160 B2BASF Mobile Emissions Catalysts LLC
- Hydrogen generator for internal combusion engines16 Jun 2026US 12,655,818 B2MöbiVolt Defense LLC
- Hydrogen generation device for optimising combustion and reducing the emission of pollutants in diesel cycle engines and method of use28 Apr 2026US 12,612,886 B2
- Feeding and exhaust system for internal combustion engine, or thermal unit, and respective method of operation13 Aug 2026US 2026/0235064 A1Rhapis S.R.L.
- Methods to Reduce Combustion Time and Temperature in an Engine13 Aug 2026US 2026/0235084 A1Acamar Investments, Inc.
- Internal combustion engine13 Aug 2026US 2026/0235095 A1
- Flexible fuel engine enabled by hydrogen16 Jul 2026US 2026/0201857 A1Blaze Energy Technologies Corporation
- Hydrogen mixed-combustion electronic control device and power generation system using same11 Jun 2026US 2026/0160211 A1Hitachi, Ltd.
Most cited
By later US patents
- Method and apparatus for operation of combustion engines205US 6,155,212 A2000
- Reformed natural gas for powering an internal combustion engine177US 6,508,209 B12003
- Feed composition modification for internal combustion engines115US 6,742,507 B2QuestAir Technologies Inc. · 2004
- Variable oxygen/nitrogen enriched intake air system for internal combustion engine applications110US 5,649,517 AThe University of Chicago · 1997
- Hydrogen rich gas generator108US 3,955,941 ACalifornia Institute of Technology · 1976