| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 13 |
| # | Industry | |
|---|---|---|
| #1 | Chemical engineering | |
| #2 | Machines | |
| #3 | Packaging and shipping | |
| #4 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Separating solids using liquids | |
| #2 | Unspecified technologies | |
| #3 | Flotation | |
| #4 | Separation | |
| #5 | Chemical or physical processes | |
| #6 | Gearing | |
| #7 | Transport or storage devices | |
| #8 | Generating mechanical vibrations | |
| #9 | Mixing |
| # | Name | Total Patents |
|---|---|---|
| #1 | Butchart William A | 13 |
| Publication | Filing date | Title |
|---|---|---|
| US1748107A | Flotation apparatus | |
| US1798451A | Flotation apparatus | |
| US1798452A | Flotation apparatus | |
| US1513693A | Ore concentrator | |
| US1395480A | Agitator | |
| US1345662A | Tilting mechanism for concentrating-tables | |
| US1367117A | Mechanical movement | |
| US1256516A | Liquid-feeding device. | |
| US1175927A | Adjustable mounting. | |
| US1111992A | Concentrator. | |
| US1052036A | Concentrator. | |
| US1000579A | Concentrator. | |
| US997235A | Concentrator. |