| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Norway | 24 | |
| #2 | United States | 6 | |
| #3 | Germany | 4 | |
| #4 | United Kingdom | 3 | |
| #5 | Australia | 2 | |
| #6 | Italy | 2 | |
| #7 | Canada | 1 | |
| #8 | France | 1 | |
| #9 | Japan | 1 | |
| #10 | Sweden | 1 | |
| #11 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Machines | |
| #3 | Consumer goods | |
| #4 | Medical technology | |
| #5 | Control | |
| #6 | Engines, pumps and turbines | |
| #7 | Furniture and games | |
| #8 | Measurement |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ottestad Nils Terje | 22 |
| #2 | Ottestad Nils T | 19 |
| #3 | Knutsen Hans | 1 |
| #4 | Ottestad Nils | 1 |
| #5 | Nirusu Teruie Otesutatsuto | 1 |
| #6 | Nicht Erkannt | 1 |
| Publication | Filing date | Title |
|---|---|---|
| AU4272896A | Method and equipment to provide air with low level of oxygen | |
| CA2079784C | A breathing system for smoke diving and the like | |
| US4711263A | Double-acting valve system for underwater breathing or the like | |
| US4534380A | Gas regulator valve | |
| US4288396A | Method and device for conditioning of breathing air for divers | |
| SE7811703L | SET AND DEVICE FOR CONDITIONING THE INHALING AIR FOR A DIVER |