| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 7 | |
| #2 | Belgium | 2 | |
| #3 | Switzerland | 2 | |
| #4 | Germany | 2 | |
| #5 | United States | 2 |
| # | Industry | |
|---|---|---|
| #1 | Medical technology | |
| #2 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Syringes | |
| #2 | Diagnosis and surgery | |
| #3 | Electrotherapy | |
| #4 | Venting or aerating devices |
| # | Name | Total Patents |
|---|---|---|
| #1 | Durand Herve | 4 |
| #2 | Grandjean Theo | 2 |
| Publication | Filing date | Title |
|---|---|---|
| US3861393A | Penetrating device for surgical drainage | |
| US3893451A | Pressure transmission device |