C04B 18/065
Residues from coal gasification
Official title: {Residues from coal gasification}
C04B18/065 (Residues from coal gasification) appears on 27 US grants and 30 published applications in this corpus.
Search patents in C04B- Granted patents
- 27
- Published applications
- 30
- Assignees
- 22
- Inventors
- 45
- Latest grant
- 15 Apr 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 3 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 1 |
| 2011 | 1 | 3 |
| 2012 | 1 | 1 |
| 2013 | 1 | 1 |
| 2014 | 2 | 1 |
| 2015 | 0 | 2 |
| 2016 | 3 | 3 |
| 2017 | 2 | 0 |
| 2018 | 2 | 4 |
| 2019 | 2 | 1 |
| 2020 | 1 | 1 |
| 2021 | 1 | 1 |
| 2022 | 1 | 2 |
| 2023 | 2 | 2 |
| 2024 | 2 | 3 |
| 2025 | 1 | 2 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Methods, systems for dehydrating gasification fine slags, and media thereof15 Apr 2025US 12,275,672 B2China University of Mining and Technology
- Method for preparing portland cement featuring early strength, low shrinkage, and low heat9 Jul 2024US 12,030,814 B21st Assignee: CHINA BUILDING MATERIALS ACADEMY CO., LTD.
- High salt gypsum wallboard containing salt absorbents and methods of making same4 Jun 2024US 11,999,658 B2United States Gypsum Company
- Mixed landfill and pond coal combustion byproducts (CCBs) and related techniques24 Oct 2023US 11,795,105 B2Vhsc, Ltd.
- Reducing mercury emissions from the burning of coal by remote sorbent addition22 Aug 2023US 11,732,889 B2NOx II, Ltd.
- Char bricks and methods of making char bricks3 Sep 2026US 2026/0257967 A1
- Pre-coating pyrolysis char for char bricks11 Dec 2025US 2025/0376418 A1
- Coal-derived carbon-based structural units and methods fabrication26 Jun 2025US 2025/0206666 A1University of Wyoming
- Methods, systems for dehydrating gasification fine slags, and media thereof19 Sep 2024US 2024/0308909 A1China University of Mining and Technology
- Alkaline activated cement methods and compositions20 Jun 2024US 2024/0199487 A1Material. Evolution Ltd.
Most cited
By later US patents
- Reducing mercury emissions from the burning of coal55US 7,758,827 B2NOx II, Ltd. · 2010
- Reducing mercury emissions from the burning of coal54US 7,955,577 B2NOx II, Ltd. · 2011
- Reducing mercury emissions from the burning of coal42US 8,226,913 B2NOx II, Ltd. · 2012
- Reducing mercury emissions from the burning of coal29US 9,416,967 B2NOx II, Ltd. · 2016
- Reducing mercury emissions from the burning of coal22US 9,822,973 B2NOx II, Ltd. · 2017