F23N 2237/08
Two or more different types of fuel simultaneously
Official title: two or more different types of fuel simultaneously
F23N2237/08 (Two or more different types of fuel simultaneously) appears on 149 US grants and 156 published applications in this corpus.
Search patents in F23N- Granted patents
- 149
- Published applications
- 156
- Assignees
- 88
- Inventors
- 260
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 4 | 0 |
| 1979 | 4 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 1 |
| 2002 | 2 | 0 |
| 2003 | 0 | 6 |
| 2004 | 5 | 4 |
| 2005 | 2 | 1 |
| 2006 | 0 | 1 |
| 2007 | 1 | 4 |
| 2008 | 2 | 6 |
| 2009 | 1 | 5 |
| 2010 | 6 | 16 |
| 2011 | 11 | 10 |
| 2012 | 9 | 18 |
| 2013 | 10 | 10 |
| 2014 | 12 | 15 |
| 2015 | 13 | 11 |
| 2016 | 9 | 14 |
| 2017 | 6 | 4 |
| 2018 | 6 | 5 |
| 2019 | 9 | 4 |
| 2020 | 3 | 2 |
| 2021 | 4 | 0 |
| 2022 | 1 | 3 |
| 2023 | 2 | 6 |
| 2024 | 1 | 3 |
| 2025 | 3 | 4 |
| 2026 | 4 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method and kiln for the firing of substantially flat base ceramic articles8 Sep 2026US 12,729,855 B2Sacmi Forni & Filter S.P.A.
- Systems and methods for operation of a flexible fuel combustor25 Aug 2026US 12,716,589 B28 Rivers Capital, LLC
- Systems and methods for fuel selection for combustion devices7 Jul 2026US 12,674,577 B2Rheem Manufacturing Company
- Gas turbine combustor having a first combustion zone receiving multiple fuels and a second combustion zone receiving a fuel not containing nitrogen atoms17 Feb 2026US 12,553,394 B2IHI Corporation
- Apparatus and method for drying material and asphalt mixing facility having such an apparatus18 Nov 2025US 12,474,118 B2Benninghoven Zweigniederlassung Der Wirtgen Mineral Technologies GmbH
- Method for the autogenous processing of metals29 Jan 2026US 2026/0029124 A1Messer Cutting Systems GmbH
- Gas system, heating apparatus and temperature regulating control method29 Jan 2026US 2026/0029125 A1Chant Heat Energy Science & Technology (Zhongshan) Co., LTD.
- Dual Fuel Fluid Heating Systems and Methods15 Jan 2026US 2026/0016161 A1Rheem Manufacturing Company
- Combustion system and prediction device31 Jul 2025US 2025/0244012 A1IHI Corporation
- Systems and methods for operation of a flexible fuel combustor12 Jun 2025US 2025/0189135 A18 Rivers Capital, LLC
Most cited
By later US patents
- System and process for controlling the flow of air and fuel to a burner92US 4,645,450 AControl Techtronics, Inc. · 1987
- Dual fuel heater68US 7,607,426 B22009
- Dual fuel boiler65US 6,904,873 B1Rheem Manufacturing Company · 2005
- Fuel control mechanism and associated method of use65US 6,938,634 B2Robertshaw Controls Company · 2005
- Rotary valve in a multi-gas cooker65US 7,156,370 B22007