| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 4 | |
| #2 | Canada | 3 | |
| #3 | Zambia | 3 | |
| #4 | Brazil | 2 | |
| #5 | Philippines | 2 | |
| #6 | South Africa | 2 | |
| #7 | Argentina | 1 | |
| #8 | Australia | 1 | |
| #9 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Environmental technology | |
| #2 | Materials and metallurgy | |
| #3 | Chemical engineering | |
| #4 | Surface technology and coating |
| # | Name | Total Patents |
|---|---|---|
| #1 | Paige Peter M | 4 |
| #2 | Johnson Paul H | 3 |
| #3 | Johnson P | 3 |
| #4 | Domic E | 2 |
| #5 | Scherba Emil S | 1 |
| #6 | Paige Peter Michael | 1 |
| #7 | Johnson P H | 1 |
| Publication | Filing date | Title |
|---|---|---|
| BR8100258A | Copper leaking process | |
| ZA8007994B | Copper leaching process | |
| CA1085623A | Thin layer leaching method and apparatus | |
| PH15319A | Apparatus for contacting immiscible fluids | |
| US4017309A | Thin layer leaching method | |
| US3984331A | Liquid-liquid settler used in solvent extraction apparatus | |
| US3989467A | Apparatus for contacting immiscible fluids | |
| US3907659A | Composite electrode and method of making same |