| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 3 | |
| #2 | Spain | 3 | |
| #3 | France | 3 | |
| #4 | United Kingdom | 3 | |
| #5 | India | 3 | |
| #6 | Italy | 3 | |
| #7 | Germany | 2 | |
| #8 | Netherlands | 2 | |
| #9 | United States | 2 | |
| #10 | Argentina | 1 | |
| #11 | Australia | 1 | |
| #12 | Brazil | 1 | |
| #13 | New Zealand | 1 |
| # | Industry | |
|---|---|---|
| #1 | Chemical engineering | |
| #2 | Textiles and paper |
| # | Technology | |
|---|---|---|
| #1 | Drying solid materials by removing liquid | |
| #2 | Mechanical leather treatments |
| # | Name | Total Patents |
|---|---|---|
| #1 | Dubourg J | 3 |
| #2 | Dubourg Jean-Pierre | 3 |
| #3 | Dubourg J P | 1 |
| #4 | Dubourg Jean Pierre | 1 |
| #5 | Dubourg J-P | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CH638564A5 | Method and apparatus for drying damp skin. | |
| IT7827185D0 | Flat material drying machine - with heated jacketed drum and sealed membrane strip | |
| ES472798A1 | Apparatus for drying flat articles of porous material under vacuum | |
| CH615990A5 | Apparatus for vacuum drying flat and flexible articles made from a porous material | |
| CH609442A5 | Apparatus for drying under vacuum flat objects, in particular large-sized skins and leathers |