F23G 2209/30
Solid combustion residues
Official title: Solid combustion residues, e.g. bottom or flyash
F23G2209/30 (Solid combustion residues) appears on 82 US grants and 80 published applications in this corpus.
Search patents in F23G- Granted patents
- 82
- Published applications
- 80
- Assignees
- 84
- Inventors
- 203
- Latest grant
- 7 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 4 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 4 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 3 | 0 |
| 2002 | 2 | 1 |
| 2003 | 4 | 11 |
| 2004 | 4 | 3 |
| 2005 | 0 | 2 |
| 2006 | 2 | 5 |
| 2007 | 3 | 4 |
| 2008 | 3 | 7 |
| 2009 | 0 | 0 |
| 2010 | 2 | 6 |
| 2011 | 2 | 6 |
| 2012 | 3 | 7 |
| 2013 | 4 | 4 |
| 2014 | 3 | 1 |
| 2015 | 4 | 3 |
| 2016 | 3 | 4 |
| 2017 | 0 | 0 |
| 2018 | 1 | 1 |
| 2019 | 0 | 0 |
| 2020 | 0 | 2 |
| 2021 | 0 | 1 |
| 2022 | 2 | 6 |
| 2023 | 1 | 1 |
| 2024 | 2 | 1 |
| 2025 | 4 | 2 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Methods and systems for controlling carbon burn out7 Oct 2025US 12,435,002 B2Em Resources LLC
- Apparatus, system and method for pyrolysing and combusting a material24 Jun 2025US 12,338,994 B2Eco-Global Energy Pty Limited
- Ponded ash beneficiation system and related methods29 Apr 2025US 12,286,598 B2Ash-TEK, LLC
- Method and system for ash treatment22 Apr 2025US 12,281,372 B2Betolar Oyj
- Combustion ash handling method and system, and petroleum-based fuel combustion plant24 Dec 2024US 12,173,382 B2Kawasaki Jukogyo Kabushiki Kaisha
- Method and apparatus for incineration of combustible waste during the manufacture of cement clinker26 Feb 2026US 2026/0055025 A1FLSmidth Cement A/S
- Methods and systems for controlling carbon burn out29 Jan 2026US 2026/0028279 A1Em Resources LLC
- Ponded ash beneficiation system and related methods7 Aug 2025US 2025/0250496 A1Ash-TEK, LLC
- Method for preparing cremation crystals by using catalyst obtained through reduction of phosphorus in skeletal remains27 Mar 2025US 2025/0100882 A1
- Ponded ash beneficiation system and related methods28 Mar 2024US 2024/0101915 A1Ash-TEK, LLC
Most cited
By later US patents
- Method and apparatus for reducing carbon content in fly ash84US 5,513,755 AJTM Industries, Inc. · 1996
- Slagging coal combustor for cementitious slag production, metal oxide reduction, shale gas and oil recovery, enviromental remediation, emission control and CO2 sequestration77US 8,337,613 B22012
- Method and product of fly ash benefication by carbon burnout in a dry bubbling fluid bed40US 5,160,539 AProgress Materials, Inc. · 1992
- Method and apparatus for treating solid particles38US 4,890,562 AAmerican Combustion, Inc. · 1990
- Flash smelting furnace37US 5,042,964 AAmerican Combustion, Inc. · 1991