| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 3 | |
| #2 | United States | 3 | |
| #3 | Czechoslovakia | 1 | |
| #4 | EPO (European Patent Office) | 1 | |
| #5 | Finland | 1 | |
| #6 | Norway | 1 | |
| #7 | USSR (Union of Socialist Soviet Republics) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Furniture and games | |
| #2 | Medical technology | |
| #3 | Machines | |
| #4 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Physical training equipment | |
| #2 | Unspecified technologies | |
| #3 | Doors and windows | |
| #4 | Medical purpose containers |
| # | Name | Total Patents |
|---|---|---|
| #1 | Shewchuk James G | 11 |
| Publication | Filing date | Title |
|---|---|---|
| CA2370988A1 | Pill crushing machine | |
| EP0242009A2 | Hockey safety net | |
| CA1218684A | Hockey safety net | |
| CA1234511A | Door and door jamb arrangement |