| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Norway | 5 | |
| #2 | Denmark | 2 | |
| #3 | Sweden | 2 | |
| #4 | Germany | 1 | |
| #5 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Doors and windows | |
| #2 | General building constructions | |
| #3 | Indexing scheme relating to hinges | |
| #4 | Hinges for doors or windows |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ekeberg Johan | 6 |
| #2 | Ekeberg J | 3 |
| #3 | Ekeberg Arild | 2 |
| #4 | Nordsletten Olav | 1 |
| #5 | Nodsletten Olav | 1 |
| Publication | Filing date | Title |
|---|---|---|
| WO9213163A1 | System for movable panels | |
| DK470582A | Door karm adjustment | |
| DE2652903A1 | Sound insulated roller hung partition wall - protects against fire with elastic top sealing elements spring:loaded to move against rail |