F23K 2203/008
Feeding devices for pulverulent fuel
F23K2203/008 (Feeding devices for pulverulent fuel) appears on 23 US grants and 27 published applications in this corpus.
Search patents in F23K- Granted patents
- 23
- Published applications
- 27
- Assignees
- 23
- Inventors
- 81
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 1 |
| 2005 | 0 | 2 |
| 2006 | 2 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 0 | 1 |
| 2013 | 2 | 3 |
| 2014 | 0 | 0 |
| 2015 | 3 | 2 |
| 2016 | 1 | 1 |
| 2017 | 3 | 1 |
| 2018 | 1 | 1 |
| 2019 | 0 | 0 |
| 2020 | 0 | 1 |
| 2021 | 0 | 2 |
| 2022 | 0 | 1 |
| 2023 | 2 | 3 |
| 2024 | 2 | 1 |
| 2025 | 1 | 2 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Systems and methods for heating of dispersed metallic particles29 Sep 2026US 12,747,858 B2Oqab Dietrich Induction Inc.
- Distribution ring for fuel in a burner, burner having such a distribution ring and drying drum having such a burner31 Mar 2026US 12,590,697 B2Benninghoven Zweigniederlassung Der Wirtgen Mineral Technologies GmbH
- Pneumatic conveying system and circulating fluidized bed boiler10 Mar 2026US 12,571,534 B2Shanxi Research Institute of Huairou Laboratory
- Control method and system for small pulverized coal silo feeding15 Jul 2025US 12,359,806 B2Huazhong University of Science and Technology
- Fuel transfer apparatus and boiler facility including same31 Dec 2024US 12,181,150 B2Doosan Heavy Industries Construction Co., Ltd
- Feeding and Mixing Device20 Aug 2026US 2026/0241356 A1Orion Engineered Carbons IP GmbH & Co. KG
- Pneumatic conveying system and circulating fluidized bed boiler18 Dec 2025US 2025/0383085 A1Shanxi Research Institute of Huairou Laboratory
- Control method and system for small pulverized coal silo feeding17 Apr 2025US 2025/0122999 A1Huazhong University of Science and Technology
- Fuel transfer apparatus and boiler facility including same4 Jan 2024US 2024/0003535 A1Doosan Heavy Industries Construction Co., Ltd
- Combustion system, particle separator and feed system for combined heat and power system19 Oct 2023US 2023/0332538 A1Enexor Energy
Most cited
By later US patents
- Apparatus for burning pulverized solid fuels with oxygen16US 7,028,622 B2Maxon Corporation · 2006
- Apparatus for transferring fuel between spaces which are at differential pressures10US 4,009,788 AShell Internationale Research Maatschappij B. V. · 1977
- Linear diffuser for balancing coal flow10US 6,234,090 B1Sure Alloy Steel Corporation · 2001
- Linear diffuser for balancing coal flow7US 6,186,079 B1Sure Alloy Steel Corporation · 2001
- Apparatus for burning pulverized solid fuels with oxygen4US 9,822,967 B2Honeywell International Inc. · 2017