| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 11 | |
| #2 | Austria | 2 | |
| #3 | Canada | 1 | |
| #4 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Environmental technology | |
| #3 | Machine tools | |
| #4 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Hydraulic engineering | |
| #2 | Reduction of greenhouse gas emissions | |
| #3 | Vehicle signalling and lighting | |
| #4 | Presses |
| # | Name | Total Patents |
|---|---|---|
| #1 | Dufour Henri | 12 |
| #2 | Henri Dufour | 3 |
| #3 | Ledermann Rodolphe | 2 |
| Publication | Filing date | Title |
|---|---|---|
| US5146848A | Apparatus for recovering liquid from liquid-filled containers | |
| CA2034043A1 | Apparatus for recovering liquid from liquid-filled containers |