| # | Country | Total Patents | |
|---|---|---|---|
| #1 | EPO (European Patent Office) | 3 | |
| #2 | WIPO (World Intellectual Property Organization) | 3 | |
| #3 | South Africa | 3 | |
| #4 | United Kingdom | 2 | |
| #5 | Zambia | 2 | |
| #6 | Australia | 1 | |
| #7 | Brazil | 1 | |
| #8 | Malawi | 1 | |
| #9 | African Intellectual Property Organization | 1 | |
| #10 | Zimbabwe | 1 |
| # | Industry | |
|---|---|---|
| #1 | Environmental technology | |
| #2 | Chemical engineering | |
| #3 | Basic materials chemistry | |
| #4 | Engines, pumps and turbines |
| # | Technology | |
|---|---|---|
| #1 | Combustion residues removal | |
| #2 | Cremation furnaces | |
| #3 | Water treatment | |
| #4 | Chemical or physical processes | |
| #5 | Producer gas production | |
| #6 | Separation | |
| #7 | Spring or inertia motors |
| # | Name | Total Patents |
|---|---|---|
| #1 | Willis James David | 12 |
| #2 | James David Willis | 2 |
| #3 | Devereux Andrew T | 2 |
| #4 | Willis James Davids | 1 |
| #5 | Nuvo Engineering Limited | 1 |
| Publication | Filing date | Title |
|---|---|---|
| WO2005100787A1 | Electric pulse pendulum power generator | |
| AU4719693A | Waste water treatment | |
| GB9315791D0 | Waste water treatment | |
| ZA8802417B | Methods and apparatus for the combustion of organic matter | |
| MW4886A1 | Gasification methods and apparatus | |
| EP0202264A1 | Gasification methods and apparatus |