| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 6 | |
| #2 | EPO (European Patent Office) | 5 | |
| #3 | WIPO (World Intellectual Property Organization) | 4 | |
| #4 | Australia | 3 | |
| #5 | United States | 3 | |
| #6 | Mexico | 2 | |
| #7 | Brazil | 1 | |
| #8 | Slovakia | 1 | |
| #9 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Mechanical elements | |
| #3 | Machines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Dunford Joseph R | 16 |
| #2 | Hughes Paul | 12 |
| #3 | Dunford Joseph R Di | 2 |
| #4 | Dunford Legal Representative A | 1 |
| #5 | Dunford Joseph R Zomrel | 1 |
| #6 | Paul Hughes | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CA2366696A1 | Externally mountable spiral bushing | |
| CA2353708A1 | Bushing arrangement for seal cavity protection in rotating fluid equipment | |
| CA2262114A1 | Flow controller for mechanical seal protection | |
| CA2203139A1 | Seal cavity throat bushing | |
| CA2106861A1 | Grit protector | |
| US4872690A | Seal cavity protector |