| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Australia | 1 | |
| #2 | Brazil | 1 | |
| #3 | Canada | 1 | |
| #4 | Germany | 1 | |
| #5 | EPO (European Patent Office) | 1 | |
| #6 | Spain | 1 | |
| #7 | India | 1 | |
| #8 | Norway | 1 | |
| #9 | Philippines | 1 | |
| #10 | United States | 1 | |
| #11 | South Africa | 1 | |
| #12 | Zambia | 1 | |
| #13 | Zimbabwe | 1 |
| # | Industry | |
|---|---|---|
| #1 | Materials and metallurgy | |
| #2 | Environmental technology |
| # | Name | Total Patents |
|---|---|---|
| #1 | Haidlen Ulrich | 9 |
| #2 | Potter George M | 9 |
| #3 | Bergmann Arthur | 8 |
| #4 | Bergmann Arthur Dr | 2 |
| #5 | Ulrich Haidlen | 1 |
| #6 | George Michael Potter | 1 |
| #7 | Arthur Bergmann | 1 |
| #8 | Potter George Martin | 1 |
| Publication | Filing date | Title |
|---|---|---|
| ZM5184A1 | Process for recovering copper and optionally silver and gold by the leaching of oxide and sulphide-containing material with water soluble cyanides | |
| DE3330795A1 | METHOD FOR PRODUCING COPPER AND, IF NECESSARY, SILVER AND GOLD BY LAUGHING OXIDIC AND SULFIDIC MATERIALS WITH WATER-SOLUBLE CYANIDES |