| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 7 | |
| #2 | Australia | 2 | |
| #3 | Canada | 1 | |
| #4 | Denmark | 1 | |
| #5 | EPO (European Patent Office) | 1 | |
| #6 | Spain | 1 | |
| #7 | Norway | 1 | |
| #8 | Portugal | 1 | |
| #9 | WIPO (World Intellectual Property Organization) | 1 | |
| #10 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Chemical engineering | |
| #2 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Separation | |
| #2 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Harms John F | 9 |
| #2 | Harms John F Ii | 9 |
| #3 | Harms Ii Harold H | 3 |
| #4 | Harms Harold H | 2 |
| #5 | Bourgeois Edmund B | 1 |
| #6 | Seville Eric D | 1 |
| #7 | Gould Corby J | 1 |
| #8 | Harms Ii John F | 1 |
| Publication | Filing date | Title |
|---|---|---|
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| US5316677A | Pleated filtering sleeve for rotational flow filter systems | |
| US5174896A | Filtering system utilizing rotational flow and angled pleated filter media and method for making slanted pleated filter media | |
| US5196119A | Filtering system utilizing rotational flow and dual chambers | |
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| US4561979A | Single cartridge filter | |
| US4559138A | End connected filter cartridges | |
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