F23G 2202/10
In two or more stages
Official title: in two or more stages
F23G2202/10 (In two or more stages) appears on 259 US grants and 173 published applications in this corpus.
Search patents in F23G- Granted patents
- 259
- Published applications
- 173
- Assignees
- 194
- Inventors
- 593
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 8 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 4 | 0 |
| 1991 | 7 | 0 |
| 1992 | 2 | 0 |
| 1993 | 8 | 0 |
| 1994 | 8 | 0 |
| 1995 | 15 | 0 |
| 1996 | 9 | 0 |
| 1997 | 9 | 0 |
| 1998 | 11 | 0 |
| 1999 | 14 | 0 |
| 2000 | 10 | 0 |
| 2001 | 14 | 4 |
| 2002 | 10 | 5 |
| 2003 | 5 | 7 |
| 2004 | 7 | 8 |
| 2005 | 8 | 6 |
| 2006 | 3 | 9 |
| 2007 | 2 | 7 |
| 2008 | 3 | 4 |
| 2009 | 3 | 8 |
| 2010 | 4 | 8 |
| 2011 | 1 | 7 |
| 2012 | 3 | 8 |
| 2013 | 3 | 8 |
| 2014 | 4 | 5 |
| 2015 | 8 | 3 |
| 2016 | 1 | 9 |
| 2017 | 5 | 4 |
| 2018 | 6 | 8 |
| 2019 | 7 | 12 |
| 2020 | 10 | 9 |
| 2021 | 7 | 8 |
| 2022 | 6 | 14 |
| 2023 | 6 | 5 |
| 2024 | 3 | 2 |
| 2025 | 4 | 1 |
| 2026 | 3 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F23G 2202/103In separate chambersIndexing code126
- F23G 2202/101With controlled oxidant supplyIndexing code75
- F23G 2202/102With supplementary heatingIndexing code56
- F23G 2202/106With recirculation of unburned solid or gaseous matter into combustion chamberIndexing code55
- F23G 2202/104With ash melting stageIndexing code42
- F23G 2202/105With waste supply in stagesIndexing code9
Recent patents
- Gasification furnace operating method and gasification furnace18 Aug 2026US 12,709,714 B2Ebara Environmental Plant Co., Ltd.
- Staged gas injection system14 Jul 2026US 12,680,696 B2John Zink Company
- Combustion system for solid biomass fuel13 Jan 2026US 12,523,372 B2Colorado State University Research Foundation
- Method and system for pyrolysis9 Dec 2025US 12,492,345 B2Royal Melbourne Institute of Technology
- Regenerative post-combustion device, coating installation, and method for coating objects29 Jul 2025US 12,372,234 B2Eisenmann Environmental Technology GMBH
- Material conversion apparatus30 Jul 2026US 2026/0218898 A1Elemental Induction, LLC
- Baler boiler apparatus and method4 Jun 2026US 2026/0153050 A1
- Compact domestic waste pyrolysis apparatus with integrated multi-chamber secondary combustion chamber21 May 2026US 2026/0139831 A1Kainos Renew Inc.
- System and Method for Pyrolysis26 Mar 2026US 2026/0085243 A1Royal Melbourne Institute of Technology
- Method for processing meat-and-bone meal28 Aug 2025US 2025/0270458 A1LuíS Leal & Filhos S.A.
Most cited
By later US patents
- Method and apparatus for the production of energy68US 7,028,478 B2Advanced Combustion Energy Systems, Inc. · 2006
- Method and apparatus for treating wastes by gasification61US 5,922,090 AEbara Corporation · 1999
- Multi-zoned waste processing reactor system with bulk processing unit55US 6,250,236 B1Allied Technology Group, Inc. · 2001
- Method and afterburner apparatus for control of highly variable flows51US 5,601,790 AThermatrix, Inc. · 1997
- Cyclone furnace for hazardous waste incineration and ash vitrification49US 5,052,312 AThe Babcock & Wilcox Company · 1991