| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 52 | |
| #2 | United States | 4 | |
| #3 | Canada | 3 | |
| #4 | Belgium | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Materials and metallurgy | |
| #3 | Mechanical elements | |
| #4 | Civil engineering | |
| #5 | Surface technology and coating |
| # | Technology | |
|---|---|---|
| #1 | Soldering, welding and flame cutting | |
| #2 | Rolling metal | |
| #3 | Pipes | |
| #4 | Alloys | |
| #5 | Making metal sheets | |
| #6 | Metal tempering | |
| #7 | Earth drilling | |
| #8 | Casting metal | |
| #9 | Shafts | |
| #10 | Coating metallic material |
| # | Name | Total Patents |
|---|---|---|
| #1 | Severin Jose | 3 |
| #2 | Jose Severin | 3 |
| #3 | Martin Roeckner | 2 |
| #4 | Fritz Halbrock | 1 |
| #5 | Roeckner Martin | 1 |
| #6 | Wilhelm Baumgardt | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2209519A | Process for producing hollow cast blocks | |
| US2224487A | Tube rolling mill | |
| US2042552A | Process for producing seamless tubes | |
| US2126509A | Tube rolling mill | |
| CA348998A | Metal tube manufacture | |
| CA356774A | Seamless tube production | |
| CA367892A | Tube rolling mill |