| # | Country | Total Patents | |
|---|---|---|---|
| #1 | WIPO (World Intellectual Property Organization) | 4 | |
| #2 | Australia | 2 | |
| #3 | Canada | 2 | |
| #4 | EPO (European Patent Office) | 2 | |
| #5 | United States | 2 | |
| #6 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Agriculture | |
| #2 | Civil engineering | |
| #3 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Crop agriculture | |
| #2 | Horticulture | |
| #3 | Construction of roads | |
| #4 | Shafts |
| # | Name | Total Patents |
|---|---|---|
| #1 | Dufty Raymond Jeffrey | 12 |
| #2 | Kaye Ronald Swynerton | 3 |
| #3 | Duffy Raymond Jeffrey | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CA2994470A1 | A roller assembly | |
| CA2989955A1 | A rolling assembly | |
| US2014014379A1 | Idler roller assembly | |
| WO9319582A1 | Rolling apparatus | |
| ZA9302370B | Coring apparatus |