| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 2 | |
| #2 | United Kingdom | 2 | |
| #3 | Mexico | 2 | |
| #4 | United States | 2 | |
| #5 | Australia | 1 | |
| #6 | Germany | 1 | |
| #7 | Japan | 1 |
| # | Industry | |
|---|---|---|
| #1 | Chemical engineering | |
| #2 | Engines, pumps and turbines |
| # | Technology | |
|---|---|---|
| #1 | Separation | |
| #2 | Non-positive-displacement pumps |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ravitts Richard B | 7 |
| #2 | Richiyaado Bii Rabitsutsu | 1 |
| #3 | Ravitts R B | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US4089620A | Floating pumping device | |
| US4056477A | Separating apparatus for clarifying liquid |