| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Ireland | 5 | |
| #2 | Australia | 3 | |
| #3 | WIPO (World Intellectual Property Organization) | 3 | |
| #4 | Canada | 2 | |
| #5 | Norway | 2 | |
| #6 | China | 1 | |
| #7 | EPO (European Patent Office) | 1 | |
| #8 | United States | 1 | |
| #9 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Chemical engineering | |
| #3 | Engines, pumps and turbines | |
| #4 | Basic materials chemistry | |
| #5 | Materials and metallurgy | |
| #6 | Surface technology and coating |
| # | Name | Total Patents |
|---|---|---|
| #1 | Duffield Roger | 19 |
| #2 | German Randall M | 8 |
| #3 | Yen Teh Fu | 7 |
| #4 | Iacocca Ronald G | 6 |
| #5 | Doyle Joseph | 4 |
| #6 | Hampshire Stuart | 4 |
| #7 | Fu Yen Teh | 4 |
| #8 | Lyons Cormac | 4 |
| #9 | Murphy Michael | 4 |
| #10 | Buggy Martin | 4 |
| Publication | Filing date | Title |
|---|---|---|
| ZA9806487B | Treatment of fluids | |
| IE980592A1 | Coating of filters | |
| AU8557598A | Treatment of fluids | |
| IE980593A1 | Treatment of fluids | |
| AU8557498A | Coating of filters | |
| IE980287A1 | Treatment of fluids | |
| IE980288A1 | A filter and method of producing same | |
| AU1463297A | A fuel filter and production process |