| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Sweden | 5 | |
| #2 | United States | 4 | |
| #3 | United Kingdom | 3 | |
| #4 | Canada | 2 | |
| #5 | Switzerland | 2 | |
| #6 | Germany | 2 | |
| #7 | Denmark | 2 | |
| #8 | France | 2 | |
| #9 | Norway | 2 | |
| #10 | Austria | 1 | |
| #11 | Belgium | 1 | |
| #12 | Finland | 1 |
| # | Industry | |
|---|---|---|
| #1 | Furniture and games | |
| #2 | Control | |
| #3 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Office furniture | |
| #2 | Chairs and beds | |
| #3 | Physical training equipment | |
| #4 | Furniture for children | |
| #5 | Teaching materials | |
| #6 | Hinges for doors or windows |
| # | Name | Total Patents |
|---|---|---|
| #1 | Askesjoe B | 5 |
| #2 | Hallgren L | 3 |
| #3 | Nyhlen K | 3 |
| #4 | Stalnacke Paul G | 3 |
| #5 | Nordberg B | 3 |
| #6 | Rikardson O | 2 |
| #7 | Paul Gunnar Stalnacke | 2 |
| #8 | Inge Nyhlen Knut | 2 |
| #9 | Harry Askesjoe Bengt | 2 |
| #10 | Stalnacke Paul Gunnar | 2 |
| Publication | Filing date | Title |
|---|---|---|
| GB1343697A | Parallel bars assembly for gymnastic or medical purposes | |
| US3604672A | Suspension device for teaching aids and the like | |
| US3582068A | Channel-shaped balancing device | |
| FR1355443A | Adjustable height school desk | |
| GB1033506A | An improved adjustable desk | |
| GB887550A | A new or improved adjustable desk or chair | |
| CA764304A | School desk of adjustable height | |
| CA690103A | Adjustable desk and chair |