| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 5 | |
| #2 | Norway | 5 | |
| #3 | Belgium | 4 | |
| #4 | Switzerland | 4 | |
| #5 | Germany | 4 | |
| #6 | Denmark | 4 | |
| #7 | Sweden | 4 | |
| #8 | France | 3 | |
| #9 | United States | 3 | |
| #10 | Austria | 2 | |
| #11 | Canada | 2 | |
| #12 | Finland | 2 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Shaping of plastics | |
| #2 | Pipes | |
| #3 | Unspecified technologies | |
| #4 | Producing goods from plastic |
| # | Name | Total Patents |
|---|---|---|
| #1 | Gilbu A | 11 |
| #2 | Gilbu Agnar | 4 |
| #3 | Eger Nicolai A | 2 |
| #4 | Agnar Gilbu | 2 |
| #5 | Borge Kjell S | 2 |
| #6 | Eger N A | 1 |
| #7 | Borge K S | 1 |
| #8 | Eger N | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US3967650A | Pipes | |
| GB1394305A | Reinforcing tubes | |
| GB1384960A | Method and apparatus for manufacturing tubes of reinforced thermosetting plastics | |
| DE2215261A1 | Reinforced thermosetting resin tubes - using rotating mandrel heating resin immediately after application | |
| US3737353A | Method of producing ribbed tubes of reinforced setting plastic material | |
| US3770541A | Method for producing tubes of reinforced setting plastic material |