F23C 1/02
Lump and liquid fuel
Official title: lump and liquid fuel
F23C1/02 (Lump and liquid fuel) appears on 14 US grants and 8 published applications in this corpus.
Search patents in F23C- Granted patents
- 14
- Published applications
- 8
- Assignees
- 11
- Inventors
- 37
- Latest grant
- 17 Jan 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 1 |
| 2015 | 0 | 0 |
| 2016 | 2 | 1 |
| 2017 | 1 | 1 |
| 2018 | 2 | 1 |
| 2019 | 1 | 1 |
| 2020 | 0 | 1 |
| 2021 | 0 | 0 |
| 2022 | 1 | 0 |
| 2023 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Dual fuel direct ignition burners17 Jan 2023US 11,555,612 B2Babcock Power Services, Inc.
- Method for operating flue gas purification system13 Sep 2022US 11,441,774 B2Mitsubishi Power, Ltd.
- Highly efficient wood stove/heater3 Dec 2019US 10,495,300 B2Liberator LLC
- Method for combustion of multiple fuels16 Oct 2018US 10,101,024 B2Clearsign Combustion Corporation
- Dual fuel boiler26 Jun 2018US 10,006,627 B2
- Method for operating flue gas purification system14 May 2020US 2020/0149741 A1Mitsubishi Hitachi Power Systems, Ltd.
- Dual fuel direct ignition burners30 May 2019US 2019/0162410 A1Riley Power, Inc.
- Highly Efficient Wood Stove/Heater24 May 2018US 2018/0142886 A1Liberator LLC
- Method for combustion of multiple fuels14 Sep 2017US 2017/0261201 A1Clearsign Combustion Corporation
- System and method for combustion of multiple fuels25 Aug 2016US 2016/0245507 A1Clearsign Combustion Corporation
Most cited
By later US patents
- Multiple fuel combustion system and method36US 9,267,680 B2Clearsign Combustion Corporation · 2016
- Low nitrogen oxides emissions from carbonaceous fuel combustion using three stages of oxidation27US 6,085,674 AClearstack Combustion Corporation · 2000
- Device for supply of secondary air, and boiler with the device22US 4,903,616 A1990
- Low nitrogen oxides emissions using three stages of fuel oxidation and in-situ furnace flue gas recirculation17US 6,325,002 B1Clearstack Combustion Corporation · 2001
- Forced air wood furnace system11US 4,263,887 A1981