C01F 5/42
Magnesium sulfites
C01F5/42 (Magnesium sulfites) appears on 16 US grants and 12 published applications in this corpus.
Search patents in C01F- Granted patents
- 16
- Published applications
- 12
- Assignees
- 12
- Inventors
- 25
- Latest grant
- 24 Dec 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 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 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 1 | 2 |
| 2022 | 1 | 1 |
| 2023 | 0 | 3 |
| 2024 | 5 | 1 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Calcium oxide or magnesium oxide production with alkali and sulfur dioxide intermediates24 Dec 2024US 12,172,955 B2Innovator Energy, LLC
- Sodium hydroxide production with carboxylic acid and sulfur dioxide intermediates9 Jul 2024US 12,030,846 B2Innovator Energy, LLC
- Sodium bicarbonate or sodium carbonate or sodium hydroxide or calcium oxide or calcium hydroxide or calcium carbonate production with carbon dioxide9 Jul 2024US 12,030,847 B2Innovator Energy, LLC
- Calcium oxide or magnesium oxide production with alkali and sulfur dioxide intermediates25 Jun 2024US 12,017,985 B2Innovator Energy, LLC
- Processes for the production of citric acid13 Feb 2024US 11,897,840 B2Innovator Energy, LLC
- Method of capturing carbon dioxide15 May 2025US 2025/0153098 A1Industrial Technology Research Institute
- Calcium Oxide or Magnesium Oxide Production with Alkali and Sulfur Dioxide Intermediates8 Aug 2024US 2024/0262777 A1Innovator Energy, LLC
- Calcium Oxide or Magnesium Oxide Production with Alkali and Sulfur Dioxide Intermediates7 Dec 2023US 2023/0391706 A1Innovator Energy, LLC
- Sodium Bicarbonate or Sodium Carbonate or Sodium Hydroxide or Calcium Oxide or Calcium Hydroxide or Calcium Carbonate Production with Carbon Dioxide7 Dec 2023US 2023/0391707 A1Innovator Energy, LLC
- Sodium Hydroxide Production with Carboxylic Acid and Sulfur Dioxide Intermediates30 Nov 2023US 2023/0382841 A1Innovator Energy, LLC
Most cited
By later US patents
- Chemical beneficiation of phosphatic limestone and phosphate rock with .alpha.-hydroxysulfonic acids10US 4,238,459 ATennessee Valley Authority · 1980
- Processes for the production of citric acid4US 11,236,033 B2Innovator Energy, LLC · 2022
- Process for obtaining high purity magnesium compounds from magnesium containing materials4US 4,937,056 AMaterials-Concepts-Research Limited · 1990
- Process of purification of magnesic raw material3US 4,474,737 AVysoka, skola chemiko-technologicka · 1984
- Process for producing aqueous solutions of sodium, ammonium and magnesium sulphite2US 4,009,088 ARauma-Repola Oy · 1977