| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Sweden | 5 | |
| #2 | Australia | 2 | |
| #3 | Switzerland | 2 | |
| #4 | Denmark | 2 | |
| #5 | France | 2 | |
| #6 | Italy | 2 | |
| #7 | Canada | 1 | |
| #8 | United Kingdom | 1 | |
| #9 | United States | 1 | |
| #10 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Medical technology | |
| #3 | Chemical engineering | |
| #4 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Venting or aerating devices | |
| #2 | Syringes | |
| #3 | Unspecified technologies | |
| #4 | Mixing | |
| #5 | Nails | |
| #6 | Frames |
| # | Name | Total Patents |
|---|---|---|
| #1 | Andersson L | 5 |
| #2 | Andersson Lennart Valentin | 4 |
| #3 | Simonson B | 1 |
| #4 | Andersson Lennart Valentine | 1 |
| #5 | Gustafsson A | 1 |
| #6 | Fridh N | 1 |
| #7 | Sandberg I | 1 |
| Publication | Filing date | Title |
|---|---|---|
| ZA7507196B | Gas mixing valve | |
| AU5665073A | Mixing valve fortwo gases | |
| CA937839A | Anaesthetic apparatus |