C04B 11/264
Gypsum from the desulfurisation of flue gases
Official title: {Gypsum from the desulfurisation of flue gases}
C04B11/264 (Gypsum from the desulfurisation of flue gases) appears on 16 US grants and 11 published applications in this corpus.
Search patents in C04B- Granted patents
- 16
- Published applications
- 11
- Assignees
- 20
- Inventors
- 69
- Latest grant
- 18 Feb 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 2 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 2 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 2 |
| 2022 | 1 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
| 2025 | 1 | 0 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Mineral recovery enhanced desalination (MRED) process for desalination and recovery of commodity minerals18 Feb 2025US 12,227,441 B2UNM Rainforest Innovations
- Device and method for desulfurizing crude oil23 Aug 2022US 11,421,163 B2Knauf Gips KG
- Method for reducing the content of fine material in FGD gypsum22 Sep 2015US 9,139,449 B2Andritz Inc.
- Method and apparatus for producing a multilayer cementitious product3 Mar 2015US 8,968,621 B2BPB Limited
- Multi-stage crystallization apparatus and method4 Dec 2012US 8,323,359 B2Carmeuse Lime, Inc.
- Composition for adjusting of air pores in building products in the presence of sulfate-based superplasticizers1 Oct 2026US 2026/0296976 A1BASF SE
- Full solid-waste micro-expansive concrete and preparation method thereof30 Apr 2026US 2026/0116823 A1Inner Mongolia University of Technology
- Method for preparing inorganic compound using desulfurization gypsum for reducing greenhouse gas emissions2 May 2024US 2024/0140815 A1Hyundai Oilbank Co., Ltd.
- Mineral Recovery Enhanced Desalination (MRED) Process for Desalination and Recovery of Commodity Minerals14 Oct 2021US 2021/0317026 A1UNM Rainforest Innovations
- Device and method for desulfurizing crude oil12 Aug 2021US 2021/0246378 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
- Manufacture of gypsum board from FGD gypsum16US 4,502,901 ANational Gypsum Company · 1985
- Dust abatement with calcium sulfate15US 4,269,721 AStauffer Chemical Company · 1981
- Preparation of a calcium sulfate anhydrite material of low chloride content14US 4,495,162 AA/S Niro Atomizer · 1985
- Process for the conversion of calcium sulfate dihydrate into alpha-hemihydrate10US 5,248,487 A1993