| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 7 | |
| #2 | United Kingdom | 3 | |
| #3 | Canada | 2 |
| # | Industry | |
|---|---|---|
| #1 | Materials and metallurgy | |
| #2 | Environmental technology | |
| #3 | Machines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Humbert Ernest | 12 |
| Publication | Filing date | Title |
|---|---|---|
| GB121674A | Process of Making Iron and Steel in Electric Furnaces. | |
| CA179771A | Pig iron | |
| US1242442A | Making pig-iron. | |
| US1252443A | Process of making metals in electric furnaces. | |
| CA177678A | Steel manufacture | |
| US1228925A | Making low-carbon manganese alloys. | |
| GB191318856A | Improvements in Purifying Steel. | |
| GB191318116A | Improvements in Making or Refining Steel. | |
| US1101551A | Melting ferromanganese. | |
| US1187623A | Making steel. | |
| US1081532A | Purifying steel. | |
| US943192A | Refining-steel. |