| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 14 | |
| #2 | EPO (European Patent Office) | 2 | |
| #3 | Switzerland | 1 | |
| #4 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Hinges for doors or windows | |
| #2 | Indexing scheme relating to hinges | |
| #3 | Wing fittings | |
| #4 | Doors and windows | |
| #5 | Roof coverings |
| # | Name | Total Patents |
|---|---|---|
| #1 | Glass Norbert | 4 |
| #2 | Hartmann Ernst | 3 |
| #3 | Ernst Hartmann | 1 |
| #4 | Theissen Hans | 1 |
| Publication | Filing date | Title |
|---|---|---|
| WO9313365A1 | Hatch, especially as a closure for flue gas vents in roofs or the like | |
| DE4003162A1 | DEVICE FOR MOTORALLY OPENING AND CLOSING WINDOWS, DOORS OR THE LIKE | |
| DE623013C | Swiveling sliding window |