F23K 2201/505
With additives
Official title: with additives
F23K2201/505 (With additives) appears on 113 US grants and 122 published applications in this corpus.
Search patents in F23K- Granted patents
- 113
- Published applications
- 122
- Assignees
- 62
- Inventors
- 140
- Latest grant
- 4 Feb 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 2 |
| 2003 | 0 | 1 |
| 2004 | 2 | 3 |
| 2005 | 1 | 1 |
| 2006 | 1 | 5 |
| 2007 | 1 | 4 |
| 2008 | 1 | 4 |
| 2009 | 3 | 4 |
| 2010 | 3 | 9 |
| 2011 | 4 | 15 |
| 2012 | 9 | 13 |
| 2013 | 15 | 6 |
| 2014 | 8 | 16 |
| 2015 | 9 | 11 |
| 2016 | 2 | 9 |
| 2017 | 8 | 1 |
| 2018 | 8 | 7 |
| 2019 | 6 | 2 |
| 2020 | 8 | 5 |
| 2021 | 6 | 2 |
| 2022 | 2 | 0 |
| 2023 | 2 | 0 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Methods and apparatus for carbonaceous fuel and/or feedstock treatment4 Feb 2025US 12,215,287 B1VRC Technology, LLC
- Sorbents for coal combustion22 Aug 2023US 11,732,888 B2NOx II, Ltd.
- Reducing mercury emissions from the burning of coal by remote sorbent addition22 Aug 2023US 11,732,889 B2NOx II, Ltd.
- Methods and apparatus for improved gasification of carbonaceous feedstock22 Nov 2022US 11,505,757 B1VRC Technology, LLC
- Method and additive for controlling nitrogen oxide emissions12 Jul 2022US 11,384,304 B2ADA-ES, Inc.
- 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.
- Combustion method using fuel combustion device, cement manufacturing method, and cement firing facility30 Apr 2026US 2026/0117967 A1Sumitomo Osaka Cement Co., Ltd.
- Reducing mercury emissions from the burning of coal by remote sorbent addition28 Oct 2021US 2021/0332977 A1NOx II, Ltd.
- Sorbents for coal combustion5 Aug 2021US 2021/0239318 A1NOx II, Ltd.
- Method and additive for controlling nitrogen oxide emissions22 Oct 2020US 2020/0332213 A1ADA-ES, Inc.
Most cited
By later US patents
- 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
- Low sulfur coal additive for improved furnace operation92US 7,332,002 B2ADA Environmental Solutions, LLC · 2008
- Reducing mercury emissions from the burning of coal78US 7,507,083 B22009
- Densified fuel pellets70US 7,960,325 B2Renewable Densified Fuels, LLC · 2011