C01D 5/08
With each other or with ammonium sulfate
Official title: with each other or with ammonium sulfate
C01D5/08 (With each other or with ammonium sulfate) appears on 14 US grants and 13 published applications in this corpus.
Search patents in C01D- Granted patents
- 14
- Published applications
- 13
- Assignees
- 19
- Inventors
- 37
- Latest grant
- 29 Apr 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 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 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 1 | 1 |
| 2019 | 0 | 0 |
| 2020 | 2 | 1 |
| 2021 | 0 | 1 |
| 2022 | 0 | 2 |
| 2023 | 2 | 2 |
| 2024 | 0 | 1 |
| 2025 | 1 | 0 |
| 2026 | 0 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Process for production of potassium sulfate, ammonium sulfate, and calcium carbonate from syngenite29 Apr 2025US 12,286,358 B2Upcycle Minerals Inc.
- Method for preparing cathode active material precursor for secondary battery, and preparation apparatus using same28 Nov 2023US 11,827,524 B2Posco Future M Co., Ltd.
- Integrated processes for treatment of an ammonium fluorosulfate byproduct of the production of bis (fluorosulfonyl) imide3 Oct 2023US 11,772,967 B2Honeywell International Inc.
- Process and system for removing sulfur dioxide from flue gas1 Dec 2020US 10,850,230 B2Marsulex Environmental Technologies Corporation
- Method for producing potassium sulfate and sodium chloride from wastewater15 Sep 2020US 10,773,969 B1Veolia Water Technologies, Inc.
- A method for treating waste sodium sulphate obtained from an industrial process, use of waste sodium sulphate obtained from an industrial process and an industrial processing plant18 Jun 2026US 2026/0167509 A1Umicore Battery Materials Finland Oy
- A method for treating waste sodium sulphate obtained from an industrial process of battery industry, use of waste sodium sulphate obtained from an industrial process of battery industry and an industrial processing plant of battery industry18 Jun 2026US 2026/0167581 A1Umicore Battery Materials Finland Oy
- Method for producing potassium sulfate by metathesis process, potassium sulfate product and potash fertilizer26 Feb 2026US 2026/0055001 A1MiGao Century Engineering Technology (Chengdu) Limited Company
- Knh4so4, caco3, cacl2 fertilizer15 Jan 2026US 2026/0015295 A1Sabic Agri-Nutrients Company
- Process for treatment of a sodium sulfate containing residue process stream of a battery manufacturing facility, a battery recycling facility, or a steel production plant15 Aug 2024US 2024/0270588 A1Cinis Fertilizer AB
Most cited
By later US patents
- Process for reduction of sulfur dioxide emission from combustion gases combined with production of potassium sulfate34US 5,624,649 AGeneral Electric Company · 1997
- Process for producing potassium hydroxide and potassium sulfate from sodium sulfate33US 6,375,824 B1Airborne Industrial Minerals Inc. · 2002
- Method of producing potassium sulfate19US 4,215,100 A1980
- Production of potassium sulfate using differential contacting13US 5,549,876 ADead Sea Works Ltd. · 1996
- Method of formulating alkali earth salts13US 6,692,716 B1Airborne Industrial Minerals Inc. · 2004