| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Australia | 3 | |
| #2 | Chile | 3 | |
| #3 | China | 3 | |
| #4 | United States | 3 | |
| #5 | WIPO (World Intellectual Property Organization) | 3 | |
| #6 | Argentina | 2 |
| # | Industry | |
|---|---|---|
| #1 | Materials and metallurgy | |
| #2 | Basic materials chemistry |
| # | Technology | |
|---|---|---|
| #1 | Alkali metal compounds | |
| #2 | Rare-earth metal compounds | |
| #3 | Inorganic fertilisers |
| # | Name | Total Patents |
|---|---|---|
| #1 | Neuman Thomas H | 16 |
| #2 | Lefaivre Antoine | 16 |
| #3 | Buckhurst Ingrid T | 16 |
| #4 | Chastain Richard W | 16 |
| Publication | Filing date | Title |
|---|---|---|
| CN109415218A | The method that rock salt is reduced in potassium sulfate is prepared from phosphate-containing ore at a high ambient temperature | |
| WO2017108876A1 | Method for the control of sulphate forming compounds in the preparation of potassium sulphate from potassium-containing ores at high ambient temperatures | |
| US2018111839A1 | Methods for the production of potassium sulphate from potassium-containing ores at high ambient temperatures |