| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Sweden | 4 | |
| #2 | Australia | 1 | |
| #3 | Belgium | 1 | |
| #4 | Brazil | 1 | |
| #5 | Canada | 1 | |
| #6 | Switzerland | 1 | |
| #7 | Germany | 1 | |
| #8 | Denmark | 1 | |
| #9 | France | 1 | |
| #10 | United Kingdom | 1 | |
| #11 | Hong Kong | 1 | |
| #12 | Ireland | 1 | |
| #13 | Italy | 1 | |
| #14 | Netherlands | 1 | |
| #15 | Norway | 1 | |
| #16 | United States | 1 | |
| #17 | WIPO (World Intellectual Property Organization) | 1 | |
| #18 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Furniture and games | |
| #2 | Optics | |
| #3 | Control |
| # | Technology | |
|---|---|---|
| #1 | Physical training equipment | |
| #2 | Cameras | |
| #3 | Office furniture | |
| #4 | Teaching materials |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hay Eric | 7 |
| #2 | Hay E | 5 |
| #3 | Nordstrom Anders | 5 |
| #4 | Nordstroem Anders | 3 |
| #5 | Nordstroem A | 2 |
| #6 | Nordstrom A | 2 |
| #7 | Hansen L | 1 |
| #8 | Palmqvist C-G | 1 |
| #9 | Hay Erik | 1 |
| #10 | Grewin L M | 1 |
| Publication | Filing date | Title |
|---|---|---|
| BR8006748A | Ball sports training equipment | |
| IE800212L | Training apparatus for racket and ball games |