F23J 1/02
Apparatus for removing ash, clinker, or slag from ash-pits
Official title: Apparatus for removing ash, clinker, or slag from ash-pits, e.g. by employing trucks or conveyors, by employing suction devices
F23J1/02 (Apparatus for removing ash, clinker, or slag from ash-pits) appears on 112 US grants and 78 published applications in this corpus.
Search patents in F23J- Granted patents
- 112
- Published applications
- 78
- Assignees
- 62
- Inventors
- 224
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 5 | 0 |
| 1983 | 1 | 0 |
| 1984 | 5 | 0 |
| 1985 | 5 | 0 |
| 1986 | 6 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 0 |
| 2005 | 1 | 2 |
| 2006 | 1 | 2 |
| 2007 | 2 | 2 |
| 2008 | 0 | 3 |
| 2009 | 3 | 5 |
| 2010 | 2 | 6 |
| 2011 | 1 | 9 |
| 2012 | 2 | 7 |
| 2013 | 0 | 5 |
| 2014 | 6 | 3 |
| 2015 | 3 | 6 |
| 2016 | 4 | 3 |
| 2017 | 5 | 1 |
| 2018 | 3 | 3 |
| 2019 | 3 | 2 |
| 2020 | 4 | 3 |
| 2021 | 0 | 3 |
| 2022 | 1 | 6 |
| 2023 | 4 | 2 |
| 2024 | 1 | 2 |
| 2025 | 3 | 2 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Char collector18 Aug 2026US 12,710,174 B2Scanship AS
- Crematory vacuum cleaner19 May 2026US 12,631,328 B2
- System and mechanism for bottom ash feed regulation to a low capacity conveyor19 Aug 2025US 12,392,487 B2United Conveyor Corporation
- Method and system for gasification of biomass29 Jul 2025US 12,371,621 B2McGolden, LLC
- Fire pit ash cleanup17 Jun 2025US 12,331,928 B1Lamplight Farms Incorporated
- System And Mechanism For Bottom Ash Feed Regulation To A Low Capacity Conveyor18 Dec 2025US 2025/0383084 A1United Conveyor Corporation
- Method and system for gasification of biomass4 Dec 2025US 2025/0368907 A1
- Crematory Vacuum Cleaner6 Jun 2024US 2024/0183528 A1
- Char collector15 Feb 2024US 2024/0053005 A1Scanship AS
- Method and System for Gasification of Biomass2 Nov 2023US 2023/0348789 A1McGolden, LLC
Most cited
By later US patents
- Material transport pusher mechanism in a material processing apparatus41US 5,361,709 A1994
- Fireplace cleaner34US 4,342,131 A1982
- On-wing combustor cleaning using direct insertion nozzle, wash agent, and procedure29US 7,531,048 B2Honeywell International Inc. · 2009
- Ash vacuum28US 5,259,087 A1993
- Incinerator with two reburn stages, and, optionally, heat recovery23US 4,438,705 A1984