F23G 2203/501
With external recirculation of entrained bed material
Official title: with external recirculation of entrained bed material
F23G2203/501 (With external recirculation of entrained bed material) appears on 50 US grants and 33 published applications in this corpus.
Search patents in F23G- Granted patents
- 50
- Published applications
- 33
- Assignees
- 47
- Inventors
- 137
- Latest grant
- 30 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 3 | 1 |
| 2003 | 1 | 2 |
| 2004 | 1 | 1 |
| 2005 | 0 | 1 |
| 2006 | 1 | 1 |
| 2007 | 1 | 1 |
| 2008 | 0 | 3 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 1 | 4 |
| 2012 | 0 | 2 |
| 2013 | 3 | 5 |
| 2014 | 1 | 3 |
| 2015 | 2 | 1 |
| 2016 | 2 | 1 |
| 2017 | 0 | 0 |
| 2018 | 1 | 0 |
| 2019 | 1 | 2 |
| 2020 | 0 | 1 |
| 2021 | 1 | 0 |
| 2022 | 1 | 1 |
| 2023 | 0 | 2 |
| 2024 | 0 | 0 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Method of preventing blockage of circulating bed material in a circulating fluidized bed reactor arrangement30 Dec 2025US 12,510,244 B2Sumitomo SHI FW Energia Oy
- Fluid sand falling type circulating fluidized bed boiler with a plurality of risers and method of operating the same17 May 2022US 11,333,349 B2Korea Institute of Energy Research
- Devices and methods for a pyrolysis and gasification system for biomass feedstock30 Nov 2021US 11,186,779 B2The Texas A&M University System
- Process for co-gasification of two or more carbonaceous feedstocks and apparatus thereof8 Jan 2019US 10,174,265 B2Bharat Petroleum Corporation Limited
- Method for conveying impurities in pressurized fluidized bed incinerator system19 Jun 2018US 10,001,277 B2Sanki Engineering Co., Ltd.
- Method for processing meat-and-bone meal28 Aug 2025US 2025/0270458 A1LuíS Leal & Filhos S.A.
- Circulation control in dual bed gasifiers13 Jul 2023US 2023/0220288 A1
- Method of preventing blockage of circulating bed material in a circulating fluidized bed reactor arrangement13 Jul 2023US 2023/0220989 A1Sumitomo SHI FW Energia Oy
- Devices and Methods for a Pyrolysis and Gasification System for Biomass Feedstock7 Apr 2022US 2022/0106528 A1The Texas A&M University System
- Fluid sand falling type circulating fluidized bed boiler with a plurality of risers and method of operating the same23 Jan 2020US 2020/0025366 A1Korea Institute of Energy Research
Most cited
By later US patents
- Method and device for controlling the temperature of a reaction carried out in a fluidized bed75US 4,552,203 ACreusot-Loire · 1985
- Fluidized bed reactor system69US 4,311,670 AA. Ahlstrom Osakeyhtio · 1982
- Method of operating a spent pulping liquor combustion apparatus43US 4,522,685 AInternational Paper Company · 1985
- Organic waste fuel combustion system integrated with a gas turbine combined cycle41US 4,957,049 AElectrodyne Research Corporation · 1990
- Two stage combustion37US 4,854,249 AInstitute of Gas Technology · 1989