F23C 10/04
The particles being circulated to a section
Official title: the particles being circulated to a section, e.g. a heat-exchange section or a return duct, at least partially shielded from the combustion zone, before being reintroduced into the combustion zone
F23C10/04 (The particles being circulated to a section) appears on 439 US grants and 216 published applications in this corpus.
Search patents in F23C- Granted patents
- 439
- Published applications
- 216
- Assignees
- 177
- Inventors
- 692
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 4 | 0 |
| 1979 | 3 | 0 |
| 1980 | 1 | 0 |
| 1981 | 4 | 0 |
| 1982 | 3 | 0 |
| 1983 | 4 | 0 |
| 1984 | 8 | 0 |
| 1985 | 8 | 0 |
| 1986 | 5 | 0 |
| 1987 | 18 | 0 |
| 1988 | 17 | 0 |
| 1989 | 21 | 0 |
| 1990 | 22 | 0 |
| 1991 | 18 | 0 |
| 1992 | 12 | 0 |
| 1993 | 14 | 0 |
| 1994 | 20 | 0 |
| 1995 | 20 | 0 |
| 1996 | 14 | 0 |
| 1997 | 7 | 0 |
| 1998 | 12 | 0 |
| 1999 | 4 | 0 |
| 2000 | 4 | 0 |
| 2001 | 11 | 3 |
| 2002 | 7 | 5 |
| 2003 | 7 | 4 |
| 2004 | 6 | 2 |
| 2005 | 4 | 3 |
| 2006 | 2 | 4 |
| 2007 | 4 | 5 |
| 2008 | 2 | 8 |
| 2009 | 4 | 16 |
| 2010 | 4 | 9 |
| 2011 | 7 | 16 |
| 2012 | 9 | 10 |
| 2013 | 4 | 15 |
| 2014 | 11 | 15 |
| 2015 | 14 | 9 |
| 2016 | 12 | 18 |
| 2017 | 14 | 18 |
| 2018 | 17 | 7 |
| 2019 | 20 | 9 |
| 2020 | 5 | 5 |
| 2021 | 7 | 7 |
| 2022 | 3 | 4 |
| 2023 | 7 | 8 |
| 2024 | 5 | 10 |
| 2025 | 6 | 5 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- CLC method and plant with recovery of gaseous oxygen produced by an oxygen carrier29 Sep 2026US 12,747,859 B2Ifp Energies Nouvelles
- Device and method for sorting a particulate stream28 Apr 2026US 12,613,029 B2E.On Energiinfrastruktur AB
- Integrated method for thermal conversion and indirect combustion of a heavy hydrocarbon feedstock in a redox chemical loop for producing hydrocarbon streams and capturing the CO2 produced17 Mar 2026US 12,577,470 B2Ifp Energies Nouvelles
- Method for heating a heat exchange medium in a fluidized bed boiler, a fluidized bed boiler, and a loopseal heat exchanger30 Dec 2025US 12,510,241 B2Valmet Technologies Oy
- Induced circulation among integrated bubbling zones14 Oct 2025US 12,440,818 B2
- Fluidized bed calcination with gas mixture comprising hydrogen26 Mar 2026US 2026/0084129 A1Metso Metals Oy
- Chemical loop reaction system23 Oct 2025US 2025/0327569 A1Tokyo Ohka Kogyo.Co., Ltd.
- Method for processing meat-and-bone meal28 Aug 2025US 2025/0270458 A1LuíS Leal & Filhos S.A.
- Boiler for iron fuel combustion arrangement28 Aug 2025US 2025/0271134 A1Renewable Iron Fuel Technology B.V.
- Continuous Char Separation Reactor6 Mar 2025US 2025/0075902 A1BioShare AB
Most cited
By later US patents
- Pressurized wet combustion at increased temperature108US 5,050,375 ADipac Associates · 1991
- Oxygen fired circulating fluidized bed steam generator105US 6,505,567 B1Alstom (Switzerland) Ltd · 2003
- Process for burning carbonaceous materials94US 4,165,717 AMetallgesellschaft Aktiengesellschaft · 1979
- Two-zone fluid bed combustion or gasification process86US 4,154,581 ABattelle Development Corporation · 1979
- Biomass gasification system and method82US 6,808,543 B2Ferco Enterprises, Inc. · 2004