F23C 1/12
Gaseous and pulverulent fuel
Official title: gaseous and pulverulent fuel
F23C1/12 (Gaseous and pulverulent fuel) appears on 29 US grants and 35 published applications in this corpus.
Search patents in F23C- Granted patents
- 29
- Published applications
- 35
- Assignees
- 32
- Inventors
- 109
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 2 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 3 |
| 2015 | 1 | 4 |
| 2016 | 1 | 0 |
| 2017 | 0 | 1 |
| 2018 | 1 | 0 |
| 2019 | 1 | 3 |
| 2020 | 0 | 0 |
| 2021 | 2 | 3 |
| 2022 | 2 | 2 |
| 2023 | 2 | 4 |
| 2024 | 0 | 6 |
| 2025 | 1 | 2 |
| 2026 | 4 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Combustion device and boiler14 Jul 2026US 12,680,692 B2IHI Corporation
- Combustion device and boiler2 Jun 2026US 12,644,597 B2IHI Corporation
- Pulverized coal boiler with bottom combustor, and control method therefor26 May 2026US 12,638,172 B2Institute of Engineering Thermophysics, Chinese Acadamy of Sciences
- Burner, system, and method for hydrogen-enhanced pulverized coal ignition3 Mar 2026US 12,565,990 B2Air Products and Chemicals, Inc.
- Combustion device and boiler17 Jun 2025US 12,331,926 B2IHI Corporation
- Combustion method using fuel combustion device, cement manufacturing method, and cement firing facility30 Apr 2026US 2026/0117967 A1Sumitomo Osaka Cement Co., Ltd.
- Burner, System, and Method for Hydrogen-Enhanced Pulverized Coal Ignition23 Apr 2026US 2026/0110429 A1Air Products and Chemicals, Inc.
- Burner and combustion furnace13 Feb 2025US 2025/0052419 A1Kawasaki Jukogyo Kabushiki Kaisha
- Burner and combustion furnace13 Feb 2025US 2025/0052420 A1Kawasaki Jukogyo Kabushiki Kaisha
- Combined combustion burner and combustion apparatus including same14 Nov 2024US 2024/0377061 A1
Most cited
By later US patents
- Method and apparatus for burning pelletized organic fibrous fuel74US 4,249,471 A1981
- Apparatus and method of reducing nitrogen oxide emissions60US 4,779,545 AConsolidated Natural Gas Service Company, Inc. · 1988
- Method and apparatus of gas-coal combustion in steam boilers36US 4,597,342 AUniversity of Florida · 1986
- Apparatus and method of lowering NO.sub.x emissions using diffusion processes32US 5,078,064 AConsolidated Natural Gas Service Company, Inc. · 1992
- Low NOx pulverized solid fuel combustion process and apparatus13US 6,244,200 B1Institute of Gas Technology · 2001