C10L 9/02
Treating solid fuels to improve their combustion: by chemical means
Official title: by chemical means
C10L9/02 (Treating solid fuels to improve their combustion: by chemical means) appears on 292 US grants and 115 published applications in this corpus.
Search patents in C10L- Granted patents
- 292
- Published applications
- 115
- Assignees
- 163
- Inventors
- 554
- Latest grant
- 10 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 11 | 0 |
| 1977 | 22 | 0 |
| 1978 | 23 | 0 |
| 1979 | 15 | 0 |
| 1980 | 15 | 0 |
| 1981 | 16 | 0 |
| 1982 | 10 | 0 |
| 1983 | 13 | 0 |
| 1984 | 11 | 0 |
| 1985 | 17 | 0 |
| 1986 | 10 | 0 |
| 1987 | 8 | 0 |
| 1988 | 7 | 0 |
| 1989 | 7 | 0 |
| 1990 | 4 | 0 |
| 1991 | 1 | 0 |
| 1992 | 5 | 0 |
| 1993 | 2 | 0 |
| 1994 | 5 | 0 |
| 1995 | 3 | 0 |
| 1996 | 5 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 4 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 1 |
| 2003 | 1 | 2 |
| 2004 | 0 | 2 |
| 2005 | 1 | 3 |
| 2006 | 2 | 7 |
| 2007 | 1 | 0 |
| 2008 | 1 | 1 |
| 2009 | 1 | 2 |
| 2010 | 3 | 11 |
| 2011 | 0 | 9 |
| 2012 | 1 | 5 |
| 2013 | 1 | 2 |
| 2014 | 3 | 7 |
| 2015 | 4 | 10 |
| 2016 | 10 | 9 |
| 2017 | 7 | 6 |
| 2018 | 8 | 4 |
| 2019 | 3 | 5 |
| 2020 | 2 | 4 |
| 2021 | 5 | 3 |
| 2022 | 2 | 6 |
| 2023 | 2 | 4 |
| 2024 | 4 | 6 |
| 2025 | 5 | 3 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Pretreatment desulfurization system for reducing sulfur content of coal by immersing coal in catalyst10 Feb 2026US 12,545,848 B2Lowcarbon Co., Ltd.
- Carbon material and production method therefor14 Oct 2025US 12,441,948 B2Nippon Steel Engineering Co., Ltd.
- Method of forming graphene quantum dots from coal7 Oct 2025US 12,434,250 B2Energy & Environmental Research Center
- Oxidation device, oxidation method, and method for producing modified fuel19 Aug 2025US 12,391,894 B2Nippon Steel Engineering Co., Ltd.
- Solid composition for improving combustion engine efficiency17 Jun 2025US 12,331,257 B1
- Compound catalysts for environmentally friendly combustion of fuels6 Aug 2026US 2026/0226362 A1
- Electrochemical reduction of sulfur from sulfur-containing solid carbon-based materials28 May 2026US 2026/0146200 A1Chevron U.S.A.Inc.
- Method of forming graphene quantum dots from coal1 Jan 2026US 2026/0001086 A1Energy & Environmental Research Center Foundation
- Carbon material and production method therefor29 May 2025US 2025/0171703 A1Nippon Steel Engineering Co., Ltd.
- Pelletized products and associated systems, devices, and methods22 May 2025US 2025/0163339 A1Suncoke Technology and Development LLC
Most cited
By later US patents
- Method for producing a dried coal fuel having a reduced tendency to spontaneously ignite from a low rank coal127US 4,396,394 AAtlantic Richfield Company · 1983
- Solid fuel preparation method82US 4,280,817 ABattelle Development Corporation · 1981
- Treating solid fuel71US 4,092,125 ABattelle Development Corporation · 1978
- Method of treating coal to reduce sulphur and chlorine emissions69US 5,505,746 AIowa State University Research Foundation, Inc. · 1996
- Processes for employing treated solid carbonaceous fossil fuels66US 4,377,599 ACAW Industries, Inc. · 1983