C04B 33/1352
Fuel ashes
Official title: {Fuel ashes, e.g. fly ash}
C04B33/1352 (Fuel ashes) appears on 73 US grants and 92 published applications in this corpus.
Search patents in C04B- Granted patents
- 73
- Published applications
- 92
- Assignees
- 70
- Inventors
- 182
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 2 |
| 2003 | 0 | 2 |
| 2004 | 1 | 0 |
| 2005 | 0 | 6 |
| 2006 | 2 | 3 |
| 2007 | 4 | 5 |
| 2008 | 1 | 2 |
| 2009 | 2 | 2 |
| 2010 | 3 | 5 |
| 2011 | 3 | 5 |
| 2012 | 5 | 6 |
| 2013 | 3 | 3 |
| 2014 | 4 | 9 |
| 2015 | 4 | 3 |
| 2016 | 5 | 4 |
| 2017 | 4 | 3 |
| 2018 | 1 | 1 |
| 2019 | 3 | 7 |
| 2020 | 3 | 3 |
| 2021 | 2 | 8 |
| 2022 | 6 | 4 |
| 2023 | 2 | 2 |
| 2024 | 5 | 3 |
| 2025 | 1 | 2 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Homogenizing method and device for mixing cow dung granules into clay bricks5 May 2026US 12,617,124 B2
- Manufacturing process of calcined clays in a rotary kiln with color control7 Apr 2026US 12,595,210 B2Cementos Argos S.A.
- Insulating ceramic panels and methods of forming insulating ceramic panels30 Dec 2025US 12,509,403 B2The Boeing Company
- Preparation method of fly ash-based ceramic membrane support27 Aug 2024US 12,071,377 B2
- Multi-function ecological exterior wall and preparation method therefor25 Jun 2024US 12,018,479 B2Shanxi Tianhe New Material Technology Co., Ltd.
- Porous material for wellbore thermal insulation in drilling and its preparation method and application11 Jun 2026US 2026/0159745 A1China Univesity of Petroleum (East China)
- Insulating ceramic panels and methods of forming insulating ceramic panels2 Apr 2026US 2026/0092016 A1The Boeing Company
- Coating Approach to Prevent Agglomeration of Spherical Lightweight Aggregate (LWA) During Sintering20 Mar 2025US 2025/0091945 A1
- Bricks/pavers made from desalinated sediment and process of making same2 Jan 2025US 2025/0002408 A1
- Preparation Method of Fly Ash-Based Ceramic Membrane Support4 Jul 2024US 2024/0217879 A1Central South University
Most cited
By later US patents
- Proppants and their manufacture43US 7,160,844 B2Global Synfrac Inc. · 2007
- Synthetic aggregates comprising sewage sludge and other waste materials and methods for producing such aggregates40US 7,655,088 B2Alkemy, Ltd. · 2010
- Ceramic products, of glass, fly ash and clay and methods of making the same28US 5,583,079 A1996
- Brick and method of making same22US 4,120,735 AGilbert Associates, Inc. · 1978
- Method of manufacturing porous body17US 7,691,319 B2NGK Insulators, Ltd. · 2010