| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 5 | |
| #2 | United Kingdom | 3 | |
| #3 | Germany | 2 | |
| #4 | Netherlands | 2 | |
| #5 | Switzerland | 1 | |
| #6 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Control |
| # | Technology | |
|---|---|---|
| #1 | Shafts | |
| #2 | Pipes | |
| #3 | Venting or aerating devices | |
| #4 | Pistons and sealings | |
| #5 | Systems controlling non-electric variables |
| # | Name | Total Patents |
|---|---|---|
| #1 | Besse Georges | 2 |
| #2 | Robert Hubler | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE1937366A1 | Flap valve | |
| US3514133A | Leak-proof devices for connecting similar pipes and hoses | |
| GB1212767A | Improvements in or relating to "leak-proof devices for connecting similar pipes and hoses" | |
| GB1140435A | Improvements in or relating to device for the sealing of a rotatable shaft | |
| DE1525260A1 | Hydrodynamic bearing |