F23J 1/00
Removing ash, clinker, or slag from combustion chambers
Official title: Removing ash, clinker, or slag from combustion chambers ({removing flyash from flue gas F23J15/022;} devices for removal of material from the bed of fluidised bed combustion apparatus F23C10/24)
F23J1/00 (Removing ash, clinker, or slag from combustion chambers) appears on 394 US grants and 246 published applications in this corpus.
Search patents in F23J- Granted patents
- 394
- Published applications
- 246
- Assignees
- 241
- Inventors
- 802
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 3 | 0 |
| 1978 | 6 | 0 |
| 1979 | 1 | 0 |
| 1980 | 8 | 0 |
| 1981 | 10 | 0 |
| 1982 | 8 | 0 |
| 1983 | 8 | 0 |
| 1984 | 13 | 0 |
| 1985 | 13 | 0 |
| 1986 | 16 | 0 |
| 1987 | 8 | 0 |
| 1988 | 12 | 0 |
| 1989 | 9 | 0 |
| 1990 | 11 | 0 |
| 1991 | 11 | 0 |
| 1992 | 4 | 0 |
| 1993 | 8 | 0 |
| 1994 | 4 | 0 |
| 1995 | 6 | 0 |
| 1996 | 9 | 0 |
| 1997 | 5 | 0 |
| 1998 | 10 | 0 |
| 1999 | 3 | 0 |
| 2000 | 8 | 0 |
| 2001 | 10 | 1 |
| 2002 | 3 | 1 |
| 2003 | 5 | 7 |
| 2004 | 7 | 5 |
| 2005 | 6 | 9 |
| 2006 | 6 | 8 |
| 2007 | 4 | 14 |
| 2008 | 8 | 8 |
| 2009 | 6 | 8 |
| 2010 | 6 | 10 |
| 2011 | 5 | 24 |
| 2012 | 3 | 16 |
| 2013 | 2 | 14 |
| 2014 | 15 | 11 |
| 2015 | 15 | 17 |
| 2016 | 11 | 12 |
| 2017 | 14 | 8 |
| 2018 | 9 | 7 |
| 2019 | 11 | 8 |
| 2020 | 11 | 13 |
| 2021 | 6 | 7 |
| 2022 | 8 | 12 |
| 2023 | 7 | 10 |
| 2024 | 6 | 6 |
| 2025 | 6 | 6 |
| 2026 | 4 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Gasification furnace operating method and gasification furnace18 Aug 2026US 12,709,714 B2Ebara Environmental Plant Co., Ltd.
- Char collector18 Aug 2026US 12,710,174 B2Scanship AS
- Crematory vacuum cleaner19 May 2026US 12,631,328 B2
- Abatement device, deposited material removing means, and deposited material removing method13 Jan 2026US 12,521,770 B2Edwards Japan Limited
- Automatic water replenishing control system for slag removal14 Oct 2025US 12,442,530 B1Yantai Power Plant of Huaneng Shangdong Power Generation Co., Ltd.
- Melting furnace13 Aug 2026US 2026/0235363 A1Kubota Corporation
- Telescopic Pulse Ash Blower Capable of Blowing Ash at Multiple Angles and Ash Blowing Method Thereof18 Jun 2026US 2026/0168668 A1Harbin Xiandai Intelligent Equipment Manufacturing Co., Ltd.
- Surface melting furnace, method for monitoring supply state of object being processed in surface melting furnace, and method for operating surface melting furnace9 Apr 2026US 2026/0098636 A1Kubota Corporation
- Method and apparatus for incineration of combustible waste during the manufacture of cement clinker26 Feb 2026US 2026/0055025 A1FLSmidth Cement A/S
- System And Mechanism For Bottom Ash Feed Regulation To A Low Capacity Conveyor18 Dec 2025US 2025/0383084 A1United Conveyor Corporation
Most cited
By later US patents
- Municipal waste thermal oxidation system64US 4,941,415 AEntech, Inc. · 1990
- Incinerator for complete oxidation of impurities in a gas stream61US 5,183,646 ACustom Engineered Materials, Inc. · 1993
- Cannister type suction cleaner43US 4,355,434 A1982
- Material transport pusher mechanism in a material processing apparatus41US 5,361,709 A1994
- Fireplace cleaner34US 4,342,131 A1982