| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 20 | |
| #2 | Canada | 2 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Thermal processes | |
| #3 | Chemical engineering | |
| #4 | Materials and metallurgy |
| # | Technology | |
|---|---|---|
| #1 | Milling | |
| #2 | Furnaces | |
| #3 | Unspecified technologies | |
| #4 | Spraying devices | |
| #5 | Metal tempering | |
| #6 | Separating solids using liquids | |
| #7 | Unspecified technologies | |
| #8 | Flotation |
| # | Name | Total Patents |
|---|---|---|
| #1 | Marcy Frank E | 22 |
| Publication | Filing date | Title |
|---|---|---|
| US2115820A | Ball mill | |
| US2083851A | Spraying nozzle | |
| US1858594A | Mill | |
| US1690496A | Mill | |
| US1690495A | Mill | |
| US1690494A | Mill | |
| US1690493A | Mill | |
| US1383321A | Flotation apparatus | |
| US1362334A | Ball-mill | |
| US1361601A | Boller-mill | |
| US1226555A | Tube-mill. | |
| US1239286A | Roller-mill. | |
| US1153238A | Screen-grate for ball-mills. | |
| US1153239A | Ball-mill. | |
| US1056923A | Hydraulic concentrator. | |
| US827547A | Roasting-furnace. | |
| US802007A | Roasting-furnace. | |
| US808293A | Roasting-furnace. | |
| US1080768A | Ball-mile. | |
| US1137878A | Ball-mill. |