| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Sweden | 6 | |
| #2 | Japan | 5 | |
| #3 | Germany | 3 | |
| #4 | United States | 3 | |
| #5 | Canada | 2 | |
| #6 | EPO (European Patent Office) | 2 | |
| #7 | France | 2 | |
| #8 | United Kingdom | 2 | |
| #9 | Netherlands | 1 |
| # | Industry | |
|---|---|---|
| #1 | Materials and metallurgy | |
| #2 | Environmental technology | |
| #3 | Surface technology and coating | |
| #4 | Machines | |
| #5 | Chemical engineering |
| # | Name | Total Patents |
|---|---|---|
| #1 | Reinhardt Hans | 7 |
| #2 | Reinhardt H | 6 |
| #3 | Hansu Rainharuto | 5 |
| #4 | Ottertun Harald Daniel | 5 |
| #5 | Andersson Sven Otto Sigbert | 4 |
| #6 | Andersson S O S | 4 |
| #7 | Ottertun H D | 4 |
| #8 | Hararudo Danieru Otsuterutsun | 4 |
| #9 | Subuen Otsutoo Shiguberuto And | 3 |
| #10 | Ottertun Harald D | 3 |
| Publication | Filing date | Title |
|---|---|---|
| EP0036401A1 | A reagent and a method for the extraction of copper from an ammoniacal copper solution | |
| US4252621A | Process of regenerating an ammoniacal etching solution | |
| DE2831329A1 | PROCESS FOR EXTRACTION OF METAL FROM AN ORGANIC EXTRACTION SOLUTION IN WHICH THE METAL IS PRESENT AS A METAL CHLORIDE COMPLEX | |
| DE2726783A1 | PROCESS FOR EXTRACTION OF METALS FROM A MIXTURE OF METAL HYDROXIDES | |
| CA1090143A | Method of recovering zinc from a material containing zinc and iron |