F23J 1/08
Liquid slag removal
F23J1/08 (Liquid slag removal) appears on 54 US grants and 30 published applications in this corpus.
Search patents in F23J- Granted patents
- 54
- Published applications
- 30
- Assignees
- 71
- Inventors
- 168
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 4 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 1 |
| 2005 | 1 | 1 |
| 2006 | 1 | 1 |
| 2007 | 0 | 2 |
| 2008 | 2 | 2 |
| 2009 | 1 | 0 |
| 2010 | 1 | 1 |
| 2011 | 1 | 3 |
| 2012 | 0 | 1 |
| 2013 | 1 | 4 |
| 2014 | 2 | 2 |
| 2015 | 2 | 2 |
| 2016 | 3 | 0 |
| 2017 | 1 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 2 |
| 2021 | 0 | 2 |
| 2022 | 3 | 2 |
| 2023 | 2 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Gasification furnace operating method and gasification furnace18 Aug 2026US 12,709,714 B2Ebara Environmental Plant Co., Ltd.
- Automatic water replenishing control system for slag removal14 Oct 2025US 12,442,530 B1Yantai Power Plant of Huaneng Shangdong Power Generation Co., Ltd.
- Cleaning of a recovery boiler28 Nov 2023US 11,828,459 B2Varo Teollisuuspalvelut Oy
- Smelt spout cleaning assembly28 Feb 2023US 11,592,175 B2The Babcock & Wilcox Company
- Blocking prevention device for gasification melting system and blocking prevention method for gasification melting system7 Jun 2022US 11,353,264 B2Mitsubishi Heavy Industries Environmental & Chemical Engineering Co., Ltd.
- Melting furnace13 Aug 2026US 2026/0235363 A1Kubota Corporation
- 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
- Gasification furnace operating method and gasification furnace2 Mar 2023US 2023/0067815 A1Ebara Environmental Plant Co., Ltd.
- Pyrolysis residue-discharge system, pyrolysis reactor assembly comprising the same and corresponding method15 Sep 2022US 2022/0290052 A1
- Cleaning of a recovery boiler7 Apr 2022US 2022/0107085 A1Varo Teollisuuspalvelut Oy
Most cited
By later US patents
- Method and system for incineration and detoxification of semiliquid waste32US 4,989,522 ASharpe Environmental Services · 1991
- Quench ring and dip tube assembly for a reactor vessel30US 4,218,423 ATexaco Inc. · 1980
- Method and apparatus for burning combustible waste materials17US 4,640,203 ADyckerhoff Engineering GmbH · 1987
- Combustion chamber and process for combusting at least partially combustible substances17US 5,050,512 ASiemens Aktiengesellschaft · 1991
- Air cooled cyclone coal combustor for optimum operation and capture of pollutants during combustion15US 4,624,191 ACoal Tech Corp. · 1986