F02M 27/00
Apparatus for treating combustion-air, fuel, or fuel-air mixture, by catalysts, electric means
Official title: Apparatus for treating combustion-air, fuel, or fuel-air mixture, by catalysts, electric means, magnetism, rays, sound waves, or the like
F02M27/00 (Apparatus for treating combustion-air, fuel, or fuel-air mixture, by catalysts, electric means) appears on 1,101 US grants and 923 published applications in this corpus.
Search patents in F02M- Granted patents
- 1,101
- Published applications
- 923
- Assignees
- 474
- Inventors
- 1,840
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 26 | 0 |
| 1977 | 24 | 0 |
| 1978 | 31 | 0 |
| 1979 | 18 | 0 |
| 1980 | 16 | 0 |
| 1981 | 7 | 0 |
| 1982 | 17 | 0 |
| 1983 | 18 | 0 |
| 1984 | 22 | 0 |
| 1985 | 10 | 0 |
| 1986 | 10 | 0 |
| 1987 | 12 | 0 |
| 1988 | 7 | 0 |
| 1989 | 11 | 0 |
| 1990 | 5 | 0 |
| 1991 | 17 | 0 |
| 1992 | 15 | 0 |
| 1993 | 12 | 0 |
| 1994 | 18 | 0 |
| 1995 | 11 | 0 |
| 1996 | 11 | 0 |
| 1997 | 18 | 0 |
| 1998 | 13 | 0 |
| 1999 | 22 | 0 |
| 2000 | 27 | 0 |
| 2001 | 30 | 7 |
| 2002 | 22 | 18 |
| 2003 | 18 | 36 |
| 2004 | 33 | 32 |
| 2005 | 16 | 46 |
| 2006 | 23 | 40 |
| 2007 | 20 | 48 |
| 2008 | 28 | 47 |
| 2009 | 29 | 60 |
| 2010 | 35 | 49 |
| 2011 | 28 | 50 |
| 2012 | 27 | 43 |
| 2013 | 40 | 43 |
| 2014 | 42 | 58 |
| 2015 | 39 | 35 |
| 2016 | 41 | 37 |
| 2017 | 26 | 42 |
| 2018 | 23 | 39 |
| 2019 | 32 | 48 |
| 2020 | 38 | 29 |
| 2021 | 23 | 24 |
| 2022 | 21 | 31 |
| 2023 | 21 | 15 |
| 2024 | 21 | 16 |
| 2025 | 16 | 21 |
| 2026 | 11 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F02M 27/04Apparatus for treating combustion-air, fuel, or fuel-air mixture, by catalysts, electric means490
- F02M 27/02Apparatus for treating combustion-air, fuel, or fuel-air mixture, by catalysts, electric means426
- F02M 27/08Apparatus for treating combustion-air, fuel, or fuel-air mixture, by catalysts, electric means138
- F02M 27/06Apparatus for treating combustion-air, fuel, or fuel-air mixture, by catalysts, electric means81
Recent patents
- Systems and methods for supplying gaseous ammonia to serially-connected ammonia cracking units1 Sep 2026US 12,723,559 B2First Ammonia Motors, Inc.
- Vapor displacement refueling including data communications, zero gravity and chemical looping combustion system25 Aug 2026US 12,718,682 B2
- 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
- System and method of adding gaseous oxygen additive derived from an oxygen concentrator to diesel fuel to improve combustion21 Jul 2026US 12,687,143 B2H2Diesel, Inc.
- 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
- Carbonous Gas Conversion System9 Jul 2026US 2026/0193801 A1
- System and method of adding gaseous oxygen additive derived from an oxygen concentrator to diesel fuel to improve combustion11 Jun 2026US 2026/0160223 A1H2Diesel, 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
- Pipelined memory controller180US 6,272,609 B1Micron Electronics, Inc. · 2001
- Method and apparatus to increase combustion efficiency and to reduce exhaust gas pollutants from combustion of a fuel158US 6,851,413 B1Ronnell Company, Inc. · 2005
- Electrohydrodynamic (EHD) control of fuel injection in gas turbines137US 4,439,980 AThe United States of America as represented by the Secretary of the Navy · 1984