| # | Country | Total Patents | |
|---|---|---|---|
| #1 | EPO (European Patent Office) | 5 | |
| #2 | United States | 5 | |
| #3 | Brazil | 4 | |
| #4 | China | 4 | |
| #5 | WIPO (World Intellectual Property Organization) | 3 | |
| #6 | Canada | 2 | |
| #7 | Norway | 2 | |
| #8 | Japan | 1 | |
| #9 | Mexico | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Chemical engineering | |
| #3 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Separation | |
| #2 | Earth drilling | |
| #3 | Installations for obtaining water | |
| #4 | Shaping of plastics | |
| #5 | Cyclones |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hopkins Sam A | 20 |
| #2 | Wells Donald G | 7 |
| #3 | Alt Brady S | 7 |
| #4 | Simone Anthony D | 2 |
| #5 | Sam A Hopkins | 2 |
| #6 | Rhoads Scott Allen | 1 |
| #7 | Mitchell Scott Vande Guchte | 1 |
| #8 | Rachels David Lee | 1 |
| #9 | Scott Allen Rhoads | 1 |
| #10 | Hopkins Sam Arthur | 1 |
| Publication | Filing date | Title |
|---|---|---|
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| CN103561842A | Extended area filter with internal support structures | |
| EP2678090A2 | Extended area filter | |
| CN101326341A | Particle control screen with depth filtration | |
| US2007256834A1 | Particle control screen with depth filtration | |
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| US6540917B1 | Cyclonic inertial fluid cleaning apparatus | |
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