C10L 1/326
Coal-water suspensions
Official title: {Coal-water suspensions}
C10L1/326 (Coal-water suspensions) appears on 274 US grants and 112 published applications in this corpus.
Search patents in C10L- Granted patents
- 274
- Published applications
- 112
- Assignees
- 184
- Inventors
- 566
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 5 | 0 |
| 1981 | 7 | 0 |
| 1982 | 4 | 0 |
| 1983 | 12 | 0 |
| 1984 | 19 | 0 |
| 1985 | 27 | 0 |
| 1986 | 19 | 0 |
| 1987 | 22 | 0 |
| 1988 | 17 | 0 |
| 1989 | 9 | 0 |
| 1990 | 11 | 0 |
| 1991 | 5 | 0 |
| 1992 | 5 | 0 |
| 1993 | 3 | 0 |
| 1994 | 6 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 7 | 0 |
| 2001 | 7 | 3 |
| 2002 | 2 | 1 |
| 2003 | 4 | 14 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 4 | 4 |
| 2007 | 4 | 3 |
| 2008 | 2 | 7 |
| 2009 | 1 | 17 |
| 2010 | 1 | 8 |
| 2011 | 3 | 6 |
| 2012 | 7 | 3 |
| 2013 | 9 | 5 |
| 2014 | 4 | 10 |
| 2015 | 8 | 8 |
| 2016 | 5 | 6 |
| 2017 | 7 | 1 |
| 2018 | 2 | 3 |
| 2019 | 2 | 2 |
| 2020 | 2 | 2 |
| 2021 | 1 | 1 |
| 2022 | 3 | 3 |
| 2023 | 0 | 1 |
| 2024 | 2 | 2 |
| 2025 | 2 | 1 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Coal water slurry concentration device6 Oct 2026US 12,752,280 B2Anhui University of Science and Technology
- High-concentration filling slurry of coal gangue and preparation method thereof9 Jun 2026US 12,649,887 B1Taiyuan University of Science and Technology
- Method for upgrading coal slime through synergistic dehydration30 Sep 2025US 12,428,606 B2China University of Mining and Technology
- Flotation separation of fine coal particles from ash-forming particles11 Feb 2025US 12,220,711 B2Omnis Mineral Technologies, LLC
- Processes for utilisation of purified coal compositions as a chemical and thermal feedstock and cleaner burning fuel17 Sep 2024US 12,091,626 B2Arq IP Limited
- High-concentration filling slurry of coal gangue and preparation method thereof11 Jun 2026US 2026/0159773 A1Taiyuan University of Science and Technology
- Method for upgrading coal slime through synergistic dehydration29 May 2025US 2025/0171701 A1China University of Mining and Technology
- Coal water slurry concentration device11 Jul 2024US 2024/0226906 A1Anhui University of Science and Technology
- Coal gangue-based ecological restoration material, and preparation method and application thereof20 Jun 2024US 2024/0199956 A1Taiyuan University of Science and Technology
- Biomass fuel slurry and method of making the same16 Feb 2023US 2023/0047581 A1University of Kentucky Research Foundation
Most cited
By later US patents
- Process for recovery of hydrocarbons and rejection of sand350US 5,316,664 ACanadian Occidental Petroleum Ltd. · 1994
- Process for recovery of hydrocarbons and rejection of sand346US 5,340,467 ACanadian Occidental Petroleum Ltd. · 1994
- Method for reducing sox emissions during the combustion of sulfur-containing combustible compositions151US 4,886,519 APetroleum Fermentations N. V. · 1989
- Process for producing bitumen88US 5,083,613 ACanadian Occidental Petroleum Ltd. · 1992
- Process for removing sulfur and producing enhanced quality and environmentally acceptable products for energy production from coal71US 5,248,413 AUniversity of Kentucky Research Foundation · 1993