| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 4 | |
| #2 | Belgium | 3 | |
| #3 | Austria | 2 | |
| #4 | Germany | 2 | |
| #5 | Canada | 1 | |
| #6 | Switzerland | 1 | |
| #7 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Packaging and shipping | |
| #2 | Mechanical elements | |
| #3 | Machine tools | |
| #4 | Audio-visual technology | |
| #5 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Cleaning | |
| #2 | Transport or storage devices | |
| #3 | Venting or aerating devices | |
| #4 | Containers for goods storage | |
| #5 | Punching metal | |
| #6 | Advertising | |
| #7 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Leenaards Antoine | 6 |
| #2 | Antoine Leenaards | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB1217817A | Drawing off valve | |
| CA878328A | Liquid filling device |