| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 2 | |
| #2 | Australia | 1 | |
| #3 | Brazil | 1 | |
| #4 | China | 1 | |
| #5 | Denmark | 1 | |
| #6 | EPO (European Patent Office) | 1 | |
| #7 | France | 1 | |
| #8 | Mexico | 1 | |
| #9 | Norway | 1 | |
| #10 | United States | 1 | |
| #11 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Chemical engineering | |
| #2 | Materials and metallurgy | |
| #3 | Organic fine chemistry |
| # | Technology | |
|---|---|---|
| #1 | Separation | |
| #2 | Alkali metal compounds | |
| #3 | Acyclic or carbocyclic compounds |
| # | Name | Total Patents |
|---|---|---|
| #1 | Erga Olav | 11 |
| Publication | Filing date | Title |
|---|---|---|
| BR0109015A | procedure for removing sodium sulfate from a phosphate solution | |
| CA1012124A | Process for purification of aqueous sodium citrate solutions |