| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 3 | |
| #2 | France | 3 | |
| #3 | Belgium | 2 | |
| #4 | Switzerland | 2 | |
| #5 | United Kingdom | 1 | |
| #6 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Furniture and games | |
| #2 | Machines | |
| #3 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Domestic washing | |
| #2 | Pipes | |
| #3 | Unspecified technologies | |
| #4 | Shaping of plastics | |
| #5 | Certain plastics |
| # | Name | Total Patents |
|---|---|---|
| #1 | Leopold Pijnappels | 1 |
| #2 | Bent Alfons Pieter Hendrik Van | 1 |
| #3 | Baumen Arnold George Rolf Von | 1 |
| #4 | Dijk Gerard Van | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE1808266A1 | Combination suction mouthpiece for a vacuum cleaner | |
| GB885423A | Dust bag for a vacuum cleaner | |
| US2973972A | Detachable junction between the ends of two suction cleaner tubes |