F02M 27/02
Apparatus for treating combustion-air, fuel, or fuel-air mixture, by catalysts, electric means
Official title: by catalysts
F02M27/02 (Apparatus for treating combustion-air, fuel, or fuel-air mixture, by catalysts, electric means) appears on 426 US grants and 352 published applications in this corpus.
Search patents in F02M- Granted patents
- 426
- Published applications
- 352
- Assignees
- 200
- Inventors
- 741
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 7 | 0 |
| 1978 | 14 | 0 |
| 1979 | 11 | 0 |
| 1980 | 5 | 0 |
| 1981 | 5 | 0 |
| 1982 | 1 | 0 |
| 1983 | 9 | 0 |
| 1984 | 13 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 5 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 6 | 0 |
| 1994 | 8 | 0 |
| 1995 | 5 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 4 | 0 |
| 1999 | 5 | 0 |
| 2000 | 9 | 0 |
| 2001 | 8 | 2 |
| 2002 | 6 | 6 |
| 2003 | 6 | 12 |
| 2004 | 12 | 11 |
| 2005 | 5 | 16 |
| 2006 | 10 | 17 |
| 2007 | 12 | 19 |
| 2008 | 11 | 20 |
| 2009 | 13 | 24 |
| 2010 | 20 | 14 |
| 2011 | 11 | 19 |
| 2012 | 11 | 18 |
| 2013 | 16 | 23 |
| 2014 | 19 | 16 |
| 2015 | 14 | 15 |
| 2016 | 14 | 12 |
| 2017 | 7 | 17 |
| 2018 | 9 | 13 |
| 2019 | 10 | 16 |
| 2020 | 16 | 12 |
| 2021 | 12 | 5 |
| 2022 | 7 | 13 |
| 2023 | 12 | 6 |
| 2024 | 11 | 11 |
| 2025 | 9 | 10 |
| 2026 | 7 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Systems and methods for supplying gaseous ammonia to serially-connected ammonia cracking units1 Sep 2026US 12,723,559 B2First Ammonia Motors, Inc.
- Fuel agnostic compression ignition engine18 Aug 2026US 12,710,015 B2Climate Energy Investments, LLC
- Fuel reforming system28 Jul 2026US 12,692,828 B2Mazda Motor Corporation
- Marine methanol inert gas blanketing16 Jun 2026US 12,655,817 B2Caterpillar Inc.
- Ammonia engine system26 May 2026US 12,637,972 B2Kabushiki Kaisha Toyota Jidoshokki
- Systems and methods for stationary power generation using hydrogen and ammonia co-fuels17 Sep 2026US 2026/0275942 A1First Ammonia Motors, Inc.
- Process for producing power in a gas turbine20 Aug 2026US 2026/0243197 A1Johnson Matthey Davy Technologies Limited
- Flexible fuel engine enabled by hydrogen16 Jul 2026US 2026/0201857 A1Blaze Energy Technologies Corporation
- Systems and methods for an on-board ammonia cracking system with an exhaust gas cracking bypass for cold start conditions26 Feb 2026US 2026/0055748 A1First Ammonia Motors, 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
- Device for distributing flowing media over a flow cross section571US 4,134,425 ASiemens Aktiengesellschaft · 1979
- Method and apparatus for operation of combustion engines205US 6,155,212 A2000
- Catalyst placement in combustion cylinder for reduction on NOx and particulate soot119US 6,698,412 B2Catalytica Energy Systems, Inc. · 2004
- Device for the treatment of engine and heating fuels obtained from mineral oil or from plants116US 5,816,225 AI.A.T. Technologies Limited · 1998
- Method and apparatus for improved operation of internal combustion engines115US 5,343,699 A1994