F23J 7/00
Arrangement of devices for supplying chemicals to fire
F23J7/00 (Arrangement of devices for supplying chemicals to fire) appears on 400 US grants and 327 published applications in this corpus.
Search patents in F23J- Granted patents
- 400
- Published applications
- 327
- Assignees
- 242
- Inventors
- 736
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 5 | 0 |
| 1981 | 3 | 0 |
| 1982 | 5 | 0 |
| 1983 | 3 | 0 |
| 1984 | 8 | 0 |
| 1985 | 10 | 0 |
| 1986 | 5 | 0 |
| 1987 | 8 | 0 |
| 1988 | 9 | 0 |
| 1989 | 8 | 0 |
| 1990 | 14 | 0 |
| 1991 | 6 | 0 |
| 1992 | 6 | 0 |
| 1993 | 6 | 0 |
| 1994 | 8 | 0 |
| 1995 | 4 | 0 |
| 1996 | 5 | 0 |
| 1997 | 4 | 0 |
| 1998 | 9 | 0 |
| 1999 | 4 | 0 |
| 2000 | 9 | 0 |
| 2001 | 12 | 0 |
| 2002 | 9 | 9 |
| 2003 | 2 | 7 |
| 2004 | 8 | 15 |
| 2005 | 5 | 12 |
| 2006 | 7 | 14 |
| 2007 | 2 | 18 |
| 2008 | 11 | 24 |
| 2009 | 7 | 12 |
| 2010 | 13 | 24 |
| 2011 | 13 | 20 |
| 2012 | 13 | 17 |
| 2013 | 17 | 22 |
| 2014 | 15 | 21 |
| 2015 | 16 | 20 |
| 2016 | 10 | 16 |
| 2017 | 15 | 11 |
| 2018 | 15 | 12 |
| 2019 | 14 | 10 |
| 2020 | 17 | 14 |
| 2021 | 10 | 7 |
| 2022 | 8 | 7 |
| 2023 | 5 | 8 |
| 2024 | 6 | 2 |
| 2025 | 3 | 1 |
| 2026 | 3 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Combustion device and boiler14 Jul 2026US 12,680,692 B2IHI Corporation
- Combustion device and boiler2 Jun 2026US 12,644,597 B2IHI Corporation
- Method and system for controlling mercury emissions from coal-fired thermal processes26 May 2026US 12,636,611 B2ARQ Solutions (ES), INC.
- Method for reducing combustion temperature and thermal radiation within a lime kiln9 Dec 2025US 12,492,818 B2
- Method and device to reduce emissions of nitrogen oxides and increase heat transfer in fired process heaters21 Oct 2025US 12,449,124 B2XRG Technologies, LLC
- Method for Making a Gas From Water, Product of the Method, and Apparatus Therefor2 Jul 2026US 2026/0183738 A1LSG Partners, LLC
- Combustion method using fuel combustion device, cement manufacturing method, and cement firing facility30 Apr 2026US 2026/0117967 A1Sumitomo Osaka Cement Co., Ltd.
- Gas abatement apparatus and gas treatment method9 Apr 2026US 2026/0097361 A1Kanken Techno Co., Ltd.
- Avoiding of emissions in the production of artificial pozzolans made of mineral material, in particular clays9 Apr 2026US 2026/0097990 A1thyssenkrupp AG
- Combustion system using ammonia as fuel27 Nov 2025US 2025/0361832 A1IHI Corporation
Most cited
By later US patents
- Reducing mercury emissions from the burning of coal97US 7,776,301 B2NOx II, Ltd. · 2010
- Sulfur removal by sorbent injection in secondary combustion zones96US 4,873,930 ATRW Inc. · 1989
- Low sulfur coal additive for improved furnace operation92US 7,332,002 B2ADA Environmental Solutions, LLC · 2008
- Portland cement for SO.sub.2 control in coal-fired power plants83US 4,555,392 AThe United States of America as represented by the United States Department of Energy · 1985
- Method of simultaneously reducing CO2 and SO2 emissions in a combustion installation82US 6,737,031 B2Alstom Power N.V. · 2004