| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 7 | |
| #2 | United States | 4 |
| # | Industry | |
|---|---|---|
| #1 | Agriculture | |
| #2 | Engines, pumps and turbines | |
| #3 | Machines | |
| #4 | Consumer goods |
| # | Technology | |
|---|---|---|
| #1 | Pumps | |
| #2 | Protective garments | |
| #3 | Planting | |
| #4 | Unspecified technologies | |
| #5 | Horticulture |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hamilton Thomas W | 11 |
| #2 | Hamilton Timothy J | 2 |
| #3 | Hamilton Thomas D | 2 |
| #4 | Hynes Michael | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CA1004914A | Membrane pump | |
| CA105195A | Legging | |
| CA89438A | Leggings | |
| US783519A | Legging. | |
| CA833335A | Pneumatic control devices | |
| CA669210A | Weighing machines | |
| CA20734A | Machine and mould for making heel counters for boots and shoes | |
| US872727A | Legging. |