| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 6 | |
| #2 | EPO (European Patent Office) | 3 | |
| #3 | Canada | 2 | |
| #4 | WIPO (World Intellectual Property Organization) | 2 | |
| #5 | Australia | 1 | |
| #6 | China | 1 | |
| #7 | Czechia | 1 | |
| #8 | United Kingdom | 1 | |
| #9 | Hungary | 1 | |
| #10 | Republic of Korea | 1 | |
| #11 | Norway | 1 | |
| #12 | Poland | 1 | |
| #13 | Russian Federation | 1 | |
| #14 | Sweden | 1 | |
| #15 | Ukraine | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Making metal sheets | |
| #2 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Lennartsson Kenneth | 17 |
| #2 | Bubb Antony John Allen | 4 |
| #3 | Bubb Antony John | 1 |
| #4 | Lennartsson Kennet | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US6003220A | Method and apparatus for producing helically wound lock-seam tubing | |
| WO9627455A1 | Method and apparatus for producing helically wound lock-seam tubing | |
| SE9501750D0 | Method and apparatus for making spiral-folded tubes, and such spiral-folded tubes | |
| GB9221093D0 | Improvements in and relating to machines for forming helically wound lock-seam tubing having multiple wall thickness |