| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 3 | |
| #2 | Japan | 3 | |
| #3 | Sweden | 3 | |
| #4 | United States | 3 | |
| #5 | Switzerland | 2 | |
| #6 | Denmark | 2 | |
| #7 | Italy | 2 | |
| #8 | Netherlands | 2 | |
| #9 | EPO (European Patent Office) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Medical technology | |
| #2 | Thermal processes | |
| #3 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Operating tables | |
| #2 | Air-conditioning | |
| #3 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Duvlis Zinon | 6 |
| #2 | Duvlis Zinon Dr | 3 |
| #3 | Tsuinon Doburisu | 3 |
| Publication | Filing date | Title |
|---|---|---|
| EP0186730A2 | Method for generating a clean air stream, and apparatus for creating a clean space | |
| US4140105A | Gas curtain for shielding person on an operating table | |
| JPS51127592A | Apparatus for providing clean sterilized space in operation room including site of operation | |
| US4063495A | Contamination prevention for operating areas | |
| CH610762A5 | Apparatus for producing a clean-room atmosphere in an operating area | |
| NL7415753A | Device for cleaning the area of an operation field. |