| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Sweden | 12 | |
| #2 | Finland | 5 | |
| #3 | Norway | 5 | |
| #4 | Germany | 4 | |
| #5 | Denmark | 4 | |
| #6 | France | 4 | |
| #7 | United Kingdom | 3 | |
| #8 | Japan | 3 | |
| #9 | Netherlands | 3 | |
| #10 | Switzerland | 2 | |
| #11 | Israel | 2 | |
| #12 | Austria | 1 | |
| #13 | Australia | 1 | |
| #14 | Brazil | 1 | |
| #15 | German Democratic Republic | 1 | |
| #16 | Spain | 1 | |
| #17 | India | 1 | |
| #18 | Italy | 1 | |
| #19 | Portugal | 1 | |
| #20 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Mechanical elements | |
| #3 | Civil engineering | |
| #4 | Packaging and shipping | |
| #5 | Machine tools |
| # | Technology | |
|---|---|---|
| #1 | Shaping of plastics | |
| #2 | Pipes | |
| #3 | Fillers | |
| #4 | Sewers | |
| #5 | Metal wire processing | |
| #6 | Handling thin material | |
| #7 | Domestic plumbing installations | |
| #8 | Foundations and excavations | |
| #9 | Producing goods from plastic |
| # | Name | Total Patents |
|---|---|---|
| #1 | Stroem Torsten Erik Theodor | 10 |
| #2 | Strom T E T | 7 |
| #3 | Heregard J E W | 3 |
| #4 | Cedenblad B W | 3 |
| #5 | Cedenblad Bjoern William | 2 |
| #6 | Torusuten Eritsuku Teodooru Sh | 2 |
| #7 | Strom Torsten Erik Theodor | 2 |
| #8 | Skoenvall Tage | 1 |
| #9 | Svensson S B | 1 |
| #10 | Stroem T E T | 1 |
| Publication | Filing date | Title |
|---|---|---|
| PT66127A | Joint for tube elements | |
| DK518076A | Nozzle for introducing two material components for the preparation of a foam form in a space | |
| IL50601D0 | Machine for manufacturing reinforced tubes | |
| AU1827776A | Machine for manufacturing reinforced tubes | |
| JPS5343768A | Apparatus for manufacturing reinforced pipe | |
| GB1561770A | Method of joining tubes having a corugated wall | |
| DK138875A | Brown for drainage cords | |
| GB1461648A | Process of continuously manufacturing crosslinked thermoplastics material tubing |