C22B 26/20
Obtaining alkaline earth metals or magnesium
C22B26/20 (Obtaining alkaline earth metals or magnesium) appears on 292 US grants and 307 published applications in this corpus.
Search patents in C22B- Granted patents
- 292
- Published applications
- 307
- Assignees
- 281
- Inventors
- 934
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 8 | 0 |
| 1978 | 5 | 0 |
| 1979 | 4 | 0 |
| 1980 | 7 | 0 |
| 1981 | 4 | 0 |
| 1982 | 3 | 0 |
| 1983 | 3 | 0 |
| 1984 | 5 | 0 |
| 1985 | 4 | 0 |
| 1986 | 4 | 0 |
| 1987 | 4 | 0 |
| 1988 | 10 | 0 |
| 1989 | 3 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 10 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 4 | 0 |
| 1996 | 6 | 0 |
| 1997 | 5 | 0 |
| 1998 | 4 | 0 |
| 1999 | 4 | 0 |
| 2000 | 3 | 0 |
| 2001 | 3 | 2 |
| 2002 | 6 | 5 |
| 2003 | 8 | 7 |
| 2004 | 8 | 6 |
| 2005 | 2 | 4 |
| 2006 | 2 | 6 |
| 2007 | 0 | 3 |
| 2008 | 2 | 12 |
| 2009 | 3 | 10 |
| 2010 | 10 | 9 |
| 2011 | 4 | 4 |
| 2012 | 3 | 6 |
| 2013 | 3 | 7 |
| 2014 | 9 | 19 |
| 2015 | 12 | 30 |
| 2016 | 14 | 17 |
| 2017 | 11 | 14 |
| 2018 | 13 | 10 |
| 2019 | 10 | 6 |
| 2020 | 9 | 3 |
| 2021 | 4 | 17 |
| 2022 | 3 | 11 |
| 2023 | 5 | 20 |
| 2024 | 12 | 27 |
| 2025 | 14 | 28 |
| 2026 | 9 | 24 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method of carbothermic process of magnesium production and co-production of calcium carbide6 Oct 2026US 12,753,464 B2Zhengzhou University
- Integration of carbon sequestration with selective hydrometallurgical recovery of metal values22 Sep 2026US 12,742,226 B2Negative Emissions Materials, Inc.
- Multi-component flux11 Aug 2026US 12,703,050 B2Pyrotek, Inc.
- Metal removal method and metal recovery method30 Jun 2026US 12,668,855 B2Kabushiki Kaisha Toyota Chuo Kenkyusho
- Combined corrosion mitigation and hydrogen isotope extraction from molten salts16 Jun 2026US 12,658,334 B2Battelle Savannah River Alliance, LLC
- Lime and hydraulic cement manufacture by electrolysis using hyaloclastite or lava, carbon mineralization by hyaloclastite or lava electrolysis and method of making and using same8 Oct 2026US 2026/0308006 A1Greencraft LLC
- Combined corrosion mitigation and hydrogen isotope extraction from molten salts1 Oct 2026US 2026/0301985 A1Battelle Savannah River Alliance, LLC
- Methods for carbon capture and metal recovery and related systems24 Sep 2026US 2026/0284595 A1Battelle Energy Alliance, LLC
- Method for recycling ceramic sintered body17 Sep 2026US 2026/0274670 A1Kabushiki Kaisha Toshiba
- Recycling facility and recycling method for magnesium alloy17 Sep 2026US 2026/0275452 A1The Japan Steel Works, Ltd.
Most cited
By later US patents
- Metal powders produced by the reduction of the oxides with gaseous magnesium62US 6,558,447 B1H. C. Starck GmbH · 2003
- Process for the recovery of strontium from acid solutions27US 5,100,585 AUnited States Department of Energy · 1992
- Method for recovering nickel from high magnesium-containing Ni-Fe-Mg lateritic ore27US 5,571,308 ABHP Minerals International Inc. · 1996
- Production of magnesium metal25US 7,666,250 B1University of Tenessee Research Foundation · 2010
- Method of producing metallic magnesium, magnesium oxide or a refractory material22US 5,803,947 AMineral Development International A/S · 1998