| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 4 | |
| #2 | Germany | 3 | |
| #3 | United States | 3 | |
| #4 | Australia | 2 | |
| #5 | France | 2 | |
| #6 | United Kingdom | 2 | |
| #7 | South Africa | 2 | |
| #8 | Argentina | 1 | |
| #9 | Belgium | 1 | |
| #10 | Spain | 1 | |
| #11 | Italy | 1 | |
| #12 | Norway | 1 |
| # | Industry | |
|---|---|---|
| #1 | Materials and metallurgy | |
| #2 | Thermal processes | |
| #3 | Environmental technology |
| # | Technology | |
|---|---|---|
| #1 | Pig-iron processing | |
| #2 | Furnaces | |
| #3 | Climate change mitigation in goods production | |
| #4 | Iron and steel production | |
| #5 | Details of furnaces |
| # | Name | Total Patents |
|---|---|---|
| #1 | Wells William | 9 |
| #2 | Haysom Derek W R | 7 |
| #3 | Wells W | 5 |
| #4 | Haysom D | 4 |
| #5 | Haysom Derek William R | 2 |
| #6 | Scotia N | 1 |
| #7 | Hayson Derek W R | 1 |
| #8 | Wells Williams | 1 |
| #9 | Haysom D W R | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE2429402A1 | Tapping a blast furnace - by disintegration of a tuyere sealed through the taphole | |
| DE2428642A1 | Restarting cold blast furnaces - using lance comprising coaxial tubes providing oxygen surrounded by fuel stream | |
| AU6990274A | Blast furnace | |
| GB1433322A | Production of pig iron | |
| US3859078A | Method of operating a basic open hearth furnace | |
| CA978352A | Tapping of a blast furnace | |
| CA978366A | Operation of a blast furnace | |
| CA992311A | Adjustable tuyere | |
| CA998526A | Open hearth furnace |