| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 3 | |
| #2 | United Kingdom | 2 | |
| #3 | United States | 2 | |
| #4 | WIPO (World Intellectual Property Organization) | 2 | |
| #5 | Australia | 1 | |
| #6 | EPO (European Patent Office) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Packaging and shipping |
| # | Technology | |
|---|---|---|
| #1 | Punching metal | |
| #2 | Making screws | |
| #3 | Transport or storage devices | |
| #4 | Rolling metal |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hamilton Michael Douglas | 6 |
| #2 | Hamilton Michael D | 4 |
| Publication | Filing date | Title |
|---|---|---|
| CA2894798A1 | Improved screw conveyors, augers, and flighting for use therein | |
| WO9406579A1 | Screw conveyors, augers and flighting for use therein | |
| GB9219950D0 | Screw conveyors,augers and flighting for use therein |