| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 6 | |
| #2 | Belgium | 2 | |
| #3 | German Democratic Republic | 2 | |
| #4 | Czechoslovakia | 1 | |
| #5 | Hungary | 1 | |
| #6 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Medical technology | |
| #2 | Engines, pumps and turbines | |
| #3 | Machines | |
| #4 | Control | |
| #5 | Basic materials chemistry | |
| #6 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Syringes | |
| #2 | Unspecified technologies | |
| #3 | Pumps | |
| #4 | Cyclically operating valves | |
| #5 | Venting or aerating devices | |
| #6 | Teaching materials | |
| #7 | Materials for miscellaneous applications |
| # | Name | Total Patents |
|---|---|---|
| #1 | Kohnke Ole B | 5 |
| #2 | Grane Christian | 4 |
| #3 | Hesse Holger | 3 |
| #4 | Hansen Frantz | 1 |
| #5 | Ruben Henning M | 1 |
| #6 | K Hnke Ole B | 1 |
| #7 | Blumensaadt Hans C | 1 |
| #8 | Grane C | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US4257453A | Peep valve with improved vibration damping | |
| DD134485A5 | Supply unit for tracheal suction pump | |
| HU172480B | Trainig manikin for exercising artifical respiration | |
| CA799225A | Pressure relief device | |
| CA817130A | Breathing valve | |
| CA895116A | Valve arrangement, especially for use in anaesthetic gas supply systems |