C01B 17/745
From sulfates
Official title: {from sulfates}
C01B17/745 (From sulfates) appears on 24 US grants and 24 published applications in this corpus.
Search patents in C01B- Granted patents
- 24
- Published applications
- 24
- Assignees
- 25
- Inventors
- 70
- Latest grant
- 31 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 1 | 1 |
| 2012 | 0 | 2 |
| 2013 | 0 | 1 |
| 2014 | 1 | 2 |
| 2015 | 0 | 0 |
| 2016 | 1 | 0 |
| 2017 | 1 | 1 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 2 | 1 |
| 2021 | 0 | 0 |
| 2022 | 0 | 1 |
| 2023 | 1 | 2 |
| 2024 | 0 | 3 |
| 2025 | 2 | 6 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Desulfurization and sulfur recovery method for sulfur dioxide flue gas31 Mar 2026US 12,589,356 B2TongLing Nonferrous Metals Group Holdings Co. Ltd.
- Lime and hydraulic cement manufacture using, hyaloclastite or lava, and method of making and using same6 May 2025US 12,291,488 B2
- Processes for producing calcium oxide and sulfuric acid from calcium sulfate with magnesium intermediate18 Mar 2025US 12,252,410 B2Innovator Energy, LLC
- Integrated method for producing sulphur dioxide quality suitable for a sulphuric acid process from calcium sulphate/phosphogypsum from phosphoric acid production19 Dec 2023US 11,845,657 B2thyssenkrupp AG
- Method for the purification of alumina27 Oct 2020US 10,815,549 B2AluChem Companies, Inc.
- Simultaneous production method of lithium hydroxide and sulfuric acid1 Oct 2026US 2026/0296908 A1Posco Holdings Inc.
- Methods for preparation of ca nutrient to support carbon neutrality4 Dec 2025US 2025/0367598 A1Sabic Agri-Nutrients Company
- Lime and hydraulic cement manufacture using, hyaloclastite or lava, and method of making and using same21 Aug 2025US 2025/0263337 A1Greencraft LLC
- Processes for producing calcium oxide and sulfuric acid from calcium sulfate with magnesium intermediate3 Jul 2025US 2025/0214856 A1Innovator Energy, LLC
- System and method for production of calcium oxide with reduced carbon footprint20 Mar 2025US 2025/0091965 A1Peregrine Hydrogen Inc.
Most cited
By later US patents
- Electrochemical reactor and process23US 9,551,076 B2Clean Chemistry, Inc. · 2017
- Process for the regeneration of spent sulfuric acid20US 4,376,107 A1983
- Electrodialytic methods for removal of sulfur oxides from waste gases13US 4,552,635 AAllied Corporation · 1985
- Regeneration of sulfuric acid from sulfate by-products of 2-hydroxy-4-(methylthio)butyric acid manufacture11US 5,498,790 ANovus International, Inc. · 1996
- Electrochemical reactor and process9US 10,577,698 B2Clean Chemistry, Inc. · 2020