| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 5 | |
| #2 | Canada | 4 | |
| #3 | United States | 4 | |
| #4 | France | 3 | |
| #5 | Belgium | 2 |
| # | Industry | |
|---|---|---|
| #1 | Chemical engineering | |
| #2 | Surface technology and coating |
| # | Technology | |
|---|---|---|
| #1 | Separation | |
| #2 | Coating metallic material |
| # | Name | Total Patents |
|---|---|---|
| #1 | Black Hugh R | 6 |
| #2 | Hutson Cyril | 2 |
| #3 | Black Hugh Robert | 1 |
| #4 | Black H R | 1 |
| #5 | Anderson Raymond L | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US5008007A | Apparatus for filtering industrial process liquids | |
| US3197030A | Filter apparatus | |
| DE1272888B | Band filter | |
| US3225928A | Endless belt filter | |
| US3039610A | Apparatus for removing solids and semisolid materials from solutions | |
| CA686356A | Automatic filter screen | |
| CA730955A | Filter apparatus | |
| CA847152A | Filter screen mounting and conveying means | |
| CA655300A | Apparatus for removing solids and semi-solid materials from solutions |