C04B 28/143
The synthetic calcium sulfate being phosphogypsum
Official title: {the synthetic calcium sulfate being phosphogypsum}
C04B28/143 (The synthetic calcium sulfate being phosphogypsum) appears on 12 US grants and 14 published applications in this corpus.
Search patents in C04B- Granted patents
- 12
- Published applications
- 14
- Assignees
- 18
- Inventors
- 57
- Latest grant
- 2 Apr 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
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| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
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| 1996 | 0 | 0 |
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| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 2 |
| 2009 | 1 | 2 |
| 2010 | 0 | 0 |
| 2011 | 2 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 1 | 2 |
| 2020 | 1 | 2 |
| 2021 | 1 | 1 |
| 2022 | 2 | 0 |
| 2023 | 0 | 1 |
| 2024 | 2 | 2 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Barium slag-modified aluminate quick-hardening special cementing material and preparation method thereof2 Apr 2024US 11,945,752 B1Institute of Rock and Soil Mechanics, Chinese Academy of Sciences
- Method of preparing recycled cementitious material by phosphogypsum-assisted carbon sequestration pretreatment process27 Feb 2024US 11,912,630 B2Hubei University of Technology
- Phosphogypsum non-sintered ceramsite light aggregate and preparation method thereof27 Dec 2022US 11,535,556 B2
- Construction method for using phosphogypsum in embankment improvement3 May 2022US 11,319,676 B2Institute of Geology and Geophysics, Chinese Academy of Sciences
- Construction method for improving expansive soil embankment using phosphogypsum and microbe21 Sep 2021US 11,124,930 B1Institute of Geology and Geophysics, Chinese Academy of Sciences
- Phosphogypsum-based building material, and preparation and uset thereof29 Jan 2026US 2026/0028274 A1Hubei Juhai Environmental Technology Co., Ltd.
- Hydraulic phosphogypsum (pg)-based cementitious material, and preparation method and use thereof14 Nov 2024US 2024/0376008 A1Hubei Changyao New Materials Co., Ltd.
- Phosphogypsum-based backfill material and preparation method thereof17 Oct 2024US 2024/0343650 A1
- Method of preparing recycled cementitious material by phosphogypsum-assisted carbon sequestration pretreatment process30 Nov 2023US 2023/0382790 A1Hubei University of Technology
- Phosphogypsum non-sintered ceramsite light aggregate and preparation method thereof3 Jun 2021US 2021/0163353 A1Hubei Changyao New Materials Co., Ltd.
Most cited
By later US patents
- Process for preparation of gypsum shapes6US 4,540,439 AChemische Werke Huls Aktiengesellschaft · 1985
- Pressure compacting of settable gypsum/plaster compositions5US 4,221,599 ARhone-Poulenc Industries · 1980
- High resistance gypsum parts and preparation method to obtain these parts4US 7,910,230 B2Inovamat, Inovacao Em Materiais Ltda · 2011
- Gypsum compositions containing crosslinked cellulose ethers for mortars with reduced stickiness2US 10,494,303 B2Dow Global Technologies LLC · 2019
- Construction method for improving expansive soil embankment using phosphogypsum and microbe1US 11,124,930 B1Institute of Geology and Geophysics, Chinese Academy of Sciences · 2021