| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 6 | |
| #2 | United States | 5 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Machines | |
| #3 | Mechanical elements | |
| #4 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Making metal sheets | |
| #2 | Unspecified technologies | |
| #3 | Pipes | |
| #4 | Platform constructions |
| # | Name | Total Patents |
|---|---|---|
| #1 | Nyssen James | 11 |
| Publication | Filing date | Title |
|---|---|---|
| US2006156775A1 | Mobile pipe mill | |
| CA1076889A | Method and apparatus for making multi-layer spiral pipe | |
| US4220181A | Multi-layer pipe with single corrugation in inner wall | |
| CA1081628A | Multi-layer pipe with single corrugation in inner wall | |
| US4161194A | Reinforced smooth flow pipe | |
| US4161811A | Method and apparatus for the manufacture of reinforced smooth flow pipe | |
| US4160312A | Method and apparatus for making multi-layer spiral pipe |