C04B 28/144
The synthetic calcium sulfate being a flue gas desulfurization product
Official title: {the synthetic calcium sulfate being a flue gas desulfurization product}
C04B28/144 (The synthetic calcium sulfate being a flue gas desulfurization product) appears on 29 US grants and 30 published applications in this corpus.
Search patents in C04B- Granted patents
- 29
- Published applications
- 30
- Assignees
- 27
- Inventors
- 98
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
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| 1985 | 1 | 0 |
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| 1992 | 1 | 0 |
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| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
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| 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 | 1 |
| 2008 | 0 | 3 |
| 2009 | 0 | 1 |
| 2010 | 1 | 1 |
| 2011 | 1 | 0 |
| 2012 | 1 | 1 |
| 2013 | 1 | 2 |
| 2014 | 1 | 3 |
| 2015 | 2 | 1 |
| 2016 | 1 | 3 |
| 2017 | 0 | 0 |
| 2018 | 2 | 2 |
| 2019 | 2 | 4 |
| 2020 | 3 | 2 |
| 2021 | 1 | 0 |
| 2022 | 1 | 2 |
| 2023 | 2 | 1 |
| 2024 | 0 | 1 |
| 2025 | 1 | 1 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Low-cost four-element system cementitious material, preparation method and application thereof6 Oct 2026US 12,753,115 B2University of Science and Technology Beijing
- Coal-based solid waste transport and filling integrated machine mining system and method11 Nov 2025US 12,467,362 B2Anhui University of Science and Technology
- Methods of removing chloride from gypsum having high level of chloride salt19 Sep 2023US 11,760,689 B2Knauf Gips KG
- Solid waste-based porous materials, methods for preparing the same, and methods of ecological restoration of coal gangue hills by applying the same7 Feb 2023US 11,572,319 B2Shanxi University
- Method for the production of gypsum-based boards and stucco slurry comprising non-pregelatinized migratory starch for use therewith11 Jan 2022US 11,220,461 B2Saint-Gobain Placo
- Full solid-waste micro-expansive concrete and preparation method thereof30 Apr 2026US 2026/0116823 A1Inner Mongolia University of Technology
- Moisture-resistant gypsum boards and methods of making them29 May 2025US 2025/0171361 A1CertainTeed Gypsum, Inc.
- Low-cost four-element system cementitious material, preparation method and application thereof27 Jun 2024US 2024/0208861 A1University of Science and Technology Beijing
- Coal-based solid waste transport and filling integrated machine mining system and method30 Nov 2023US 2023/0383653 A1Western Digital Technologies, Inc.
- Methods of removing chloride from gypsum having high level of chloride salt13 Oct 2022US 2022/0324756 A1Knauf Gips KG
Most cited
By later US patents
- Process and apparatus for producing fiber-reinforced plaster plates55US 5,520,779 ABabcock BSH Aktiengesellschaft Vormals Buttner-Schilde-Haas AG · 1996
- Gypsum board comprisiing linings made of glass fiber non-wovens coated with an inorganic cement binder40US 5,395,685 AGebruder Knauf Westdeutsche Gipswerke KG · 1995
- Crystalline calcium sulfate dihydrate and process for making same24US 4,183,908 ASouthern California Edison Company · 1980
- Process for treating waste sludge from combustion plant desulfurization units and cementitious product of the process16US 4,108,677 A1978
- Dust abatement with calcium sulfate15US 4,269,721 AStauffer Chemical Company · 1981