| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 7 | |
| #2 | Belgium | 2 | |
| #3 | Netherlands | 2 | |
| #4 | Austria | 1 | |
| #5 | Slovakia | 1 | |
| #6 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machines | |
| #3 | Mechanical elements | |
| #4 | Consumer goods |
| # | Technology | |
|---|---|---|
| #1 | Doors and windows | |
| #2 | Unspecified technologies | |
| #3 | Unspecified technologies | |
| #4 | Producing decorative effects | |
| #5 | Nails |
| # | Name | Total Patents |
|---|---|---|
| #1 | Lingemann Helmut | 4 |
| #2 | Lingemann Horst | 3 |
| #3 | Kronenberg Max | 2 |
| Publication | Filing date | Title |
|---|---|---|
| DE2637034A1 | Old house renovation double glazed window spacer frame - has crossbars inside, connected to frame tubular bars | |
| DE2625993A1 | Insulated window multi pane spacer frame - has serration on spacer profile inside face and latches on angle piece shanks | |
| DE2532896A1 | CORNER CONNECTOR FOR SPACER PROFILES | |
| DE2444240A1 | Extruded metal profile for double glazing frame - has contoured rib with T or dovetail groove on one surface | |
| DE946182C | Connection for profile bars |