F23K 1/00
Preparation of lump or pulverulent fuel in readiness for delivery to combustion
Official title: Preparation of lump or pulverulent fuel in readiness for delivery to combustion apparatus
F23K1/00 (Preparation of lump or pulverulent fuel in readiness for delivery to combustion) appears on 432 US grants and 299 published applications in this corpus.
Search patents in F23K- Granted patents
- 432
- Published applications
- 299
- Assignees
- 252
- Inventors
- 859
- Latest grant
- 27 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 4 | 0 |
| 1979 | 5 | 0 |
| 1980 | 12 | 0 |
| 1981 | 17 | 0 |
| 1982 | 8 | 0 |
| 1983 | 12 | 0 |
| 1984 | 21 | 0 |
| 1985 | 14 | 0 |
| 1986 | 15 | 0 |
| 1987 | 13 | 0 |
| 1988 | 9 | 0 |
| 1989 | 5 | 0 |
| 1990 | 5 | 0 |
| 1991 | 6 | 0 |
| 1992 | 7 | 0 |
| 1993 | 10 | 0 |
| 1994 | 4 | 0 |
| 1995 | 5 | 0 |
| 1996 | 9 | 0 |
| 1997 | 8 | 0 |
| 1998 | 4 | 0 |
| 1999 | 8 | 0 |
| 2000 | 7 | 0 |
| 2001 | 7 | 1 |
| 2002 | 5 | 3 |
| 2003 | 4 | 3 |
| 2004 | 1 | 3 |
| 2005 | 2 | 5 |
| 2006 | 3 | 15 |
| 2007 | 5 | 14 |
| 2008 | 3 | 11 |
| 2009 | 6 | 10 |
| 2010 | 6 | 22 |
| 2011 | 14 | 28 |
| 2012 | 17 | 23 |
| 2013 | 27 | 28 |
| 2014 | 12 | 30 |
| 2015 | 21 | 14 |
| 2016 | 9 | 14 |
| 2017 | 17 | 8 |
| 2018 | 9 | 12 |
| 2019 | 7 | 8 |
| 2020 | 10 | 5 |
| 2021 | 14 | 7 |
| 2022 | 1 | 11 |
| 2023 | 6 | 10 |
| 2024 | 8 | 4 |
| 2025 | 7 | 7 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Coal conveying control system and method for thermal power plant27 Jan 2026US 12,535,209 B1Huaneng Chaohu Power Generation Co., Ltd.
- System and method for combusting high-moisture fuel to generate steam9 Sep 2025US 12,410,914 B2Air Products and Chemicals, Inc.
- System and method for performance and health monitoring to optimize operation of a pulverizer mill2 Sep 2025US 12,405,606 B2Tata Consultancy Services Limited
- Combustible ice efficient combustion system20 May 2025US 12,305,852 B2Guangdong University of Technology
- Graded oxygen regulating, explosion preventing and recycling system and method for liquid nitrogen wash tail gas25 Mar 2025US 12,259,129 B2Kunming University of Science and Technology
- Method for promoting combustion of combustible and enhancing power output and usage life of combustion equipment27 Aug 2026US 2026/0250589 A1Qingdao Hengnengda Energy Technologies Co., Ltd.
- Feeding and Mixing Device20 Aug 2026US 2026/0241356 A1Orion Engineered Carbons IP GmbH & Co. KG
- Coal conveying control system and method for thermal power plant29 Jan 2026US 2026/0029122 A1Huaneng Chaohu Power Generation Co., Ltd.
- Coal blending and burning system based on belt conveyors with vertical process modules25 Dec 2025US 2025/0388413 A1Huaneng Power International, Inc. Shanghai Shidongkou First Power Plant
- Boiler device and organic waste treatment device provided with same2 Oct 2025US 2025/0305676 A1Shimose Microbes Laboratory Corporation
Most cited
By later US patents
- Combination of supercritical wet combustion and compressed air energy storage112US 4,593,202 ADipac Associates · 1986
- Pressurized wet combustion at increased temperature108US 5,050,375 ADipac Associates · 1991
- Reducing mercury emissions from the burning of coal97US 7,776,301 B2NOx II, Ltd. · 2010
- Method and composition for decreasing emissions of sulfur oxides and nitrogen oxides94US 4,824,441 AGenesis Research Corporation · 1989
- Method of desulfurizing flue gases of coal firings87US 4,519,995 AOsterreichische Draukraftwerke Aktiengesellschaft · 1985