| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 5 | |
| #2 | Austria | 4 | |
| #3 | Belgium | 4 | |
| #4 | Switzerland | 4 | |
| #5 | Yugoslavia (Serbia and Montenegro) | 3 | |
| #6 | Germany | 1 | |
| #7 | Finland | 1 | |
| #8 | United Kingdom | 1 | |
| #9 | Netherlands | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Doors and windows |
| # | Name | Total Patents |
|---|---|---|
| #1 | Tumbrink Ludger | 4 |
| #2 | Tumbrink L | 2 |
| #3 | Ludger Tumbrink | 1 |
| #4 | Tumbring Ludger | 1 |
| Publication | Filing date | Title |
|---|---|---|
| ATA61076A | Front windows from profile elements | |
| DE2559431A1 | Double glazing frame for existing window - has outer profile with C-section edge channel for reinforcement and fittings | |
| YU301571A | Okvir za vrata, prozore i slicno | |
| YU104371A | Zaptivni profil sa usnama od vestackog materijala | |
| GB1123626A | Improvements in or relating to sealing strips for windows and doors, and windows anddoors incorporating same |