| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 8 | |
| #2 | United Kingdom | 7 | |
| #3 | United States | 6 |
| # | Industry | |
|---|---|---|
| #1 | Chemical engineering | |
| #2 | Machine tools | |
| #3 | Packaging and shipping |
| # | Technology | |
|---|---|---|
| #1 | Separation | |
| #2 | Presses | |
| #3 | Handling thin material |
| # | Name | Total Patents |
|---|---|---|
| #1 | Pierson Henri Gerhard Willem | 12 |
| #2 | Pierson Henri G W | 5 |
| Publication | Filing date | Title |
|---|---|---|
| GB8900285D0 | A web guidance mechanism | |
| GB8605702D0 | Batch filtration apparatus | |
| US4472279A | Endless belt filter with stationary guide bars | |
| DE3232745A1 | Vacuum belt filter | |
| US4446023A | Vacuum belt filter | |
| GB2109259A | Vacuum belt filter | |
| DE3150653A1 | "HORIZONTAL VACUUM BAND FILTER" | |
| US4377480A | Vacuum belt filter | |
| US4377479A | Vacuum belt filter | |
| GB2092906A | Vacuum belt filter | |
| GB2092905A | Vacuum belt filter | |
| GB2090764A | Horizontal vacuum belt filter | |
| DE2937599A1 | BAND FILTER | |
| US3870641A | Horizontal belt filters | |
| GB1272779A | Belt filters |