C01F 5/12
By thermal decomposition of magnesium sulfate, with or without reduction
Official title: by thermal decomposition of magnesium sulfate, with or without reduction
C01F5/12 (By thermal decomposition of magnesium sulfate, with or without reduction) appears on 11 US grants and 12 published applications in this corpus.
Search patents in C01F- Granted patents
- 11
- Published applications
- 12
- Assignees
- 7
- Inventors
- 22
- Latest grant
- 22 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 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 | 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 | 0 |
| 2009 | 0 | 4 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 2 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 2 |
| 2015 | 0 | 0 |
| 2016 | 2 | 2 |
| 2017 | 0 | 1 |
| 2018 | 2 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 1 | 1 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 1 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Systems and methods for producing alkali hydroxides and sulfuric acid or hydrochloric acid22 Jul 2025US 12,365,597 B1Innovator Energy, LLC
- Process for the production of metal oxides16 Nov 2021US 11,174,169 B2Innovator Energy, LLC
- Process to produce magnesium compounds, and various by-products using sulfuric acid in a HCl recovery loop30 Oct 2018US 10,112,842 B2Alliance MagnéSium
- Hematite manufacturing process and hematite manufactured by same10 Apr 2018US 9,938,158 B2Sumitomo Metal Mining Co., Ltd.
- Wastewater treatment process4 Oct 2016US 9,458,038 B2Sumitomo Metal Mining Co., Ltd.
- Systems and methods for producing alkali hydroxides and sulfuric acid or hydrochloric acid11 Jun 2026US 2026/0159405 A1Innovator Energy, LLC
- Systems and methods for producing alkali hydroxides and sulfuric acid or hydrochloric acid24 Jul 2025US 2025/0236531 A1Innovator Energy, LLC
- Process for the Production of Metal Oxides26 Aug 2021US 2021/0261427 A1Innovator Energy, LLC
- Process to produce magnesium compounds, and various by-products using sulfuric acid in a hcl recovery loop14 Dec 2017US 2017/0355609 A1Alliance MagnéSium
- Hematite manufacturing process and hematite manufactured by same19 May 2016US 2016/0137524 A1Sumitomo Metal Mining Co., Ltd.
Most cited
By later US patents
- Production of high purity and high surface area magnesium oxide17US 4,298,379 AThe Hanna Mining Company · 1981
- Process to produce magnesium compounds, and various by-products using sulfuric acid in a HCl recovery loop4US 10,112,842 B2Alliance MagnéSium · 2018
- Process for reductive calcining of magnesium sulfate4US 4,225,573 AIdemitsu Kosan Co., Ltd. · 1980
- Process of producing magnesia with sulfuric acid recycle2US 4,096,235 AMetallgesellschaft Aktiengesellschaft · 1978
- Plasma display panel and method for manufacturing the same2US 8,089,211 B2Panasonic Corporation · 2012