| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 13 |
| # | Industry | |
|---|---|---|
| #1 | Materials and metallurgy | |
| #2 | Thermal processes | |
| #3 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Iron and steel production | |
| #2 | Metal production and refining | |
| #3 | Furnaces | |
| #4 | Unspecified technologies | |
| #5 | Details of furnaces |
| # | Name | Total Patents |
|---|---|---|
| #1 | Jones John T | 13 |
| Publication | Filing date | Title |
|---|---|---|
| US891704A | Method of treating ore. | |
| US899405A | Method of treating ore. | |
| US891705A | Method of treating ore. | |
| US890235A | Method of forming ingots. | |
| US890234A | Method of treating iron ores. | |
| US890563A | Method of treating cooper ores. | |
| US890233A | Method of dephosphorizing and reducing iron ore. | |
| US890229A | Ore-reducing furnace. | |
| US890230A | Method of dephosphorizing ores. | |
| US890232A | Ore-smelting furnace. | |
| US890231A | Method of treating ore. | |
| US891549A | Ore-reducing furnace. | |
| US880799A | Method of reducing ores. |