| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 5 | |
| #2 | United Kingdom | 2 | |
| #3 | Belgium | 1 | |
| #4 | Canada | 1 | |
| #5 | Spain | 1 | |
| #6 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Materials and metallurgy | |
| #2 | Mechanical elements | |
| #3 | Environmental technology | |
| #4 | Machine tools |
| # | Technology | |
|---|---|---|
| #1 | Iron and steel production | |
| #2 | Venting or aerating devices | |
| #3 | Pig-iron processing | |
| #4 | Alloys | |
| #5 | Punching metal | |
| #6 | Casting metal | |
| #7 | Reduction of greenhouse gas emissions |
| # | Name | Total Patents |
|---|---|---|
| #1 | Erich Hollweg | 1 |
| #2 | Hollweg Erich | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB1190998A | A Cooling Medium Admission Hot Blast Fitting | |
| US3131054A | Gas nozzles and methods of operating the same | |
| CA559408A | Gas nozzles and methods of operating the same |