| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 5 | |
| #2 | United States | 4 | |
| #3 | EPO (European Patent Office) | 3 |
| # | Industry | |
|---|---|---|
| #1 | Textiles and paper | |
| #2 | Machine tools | |
| #3 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Making paper containers | |
| #2 | Perforating | |
| #3 | Unspecified technologies | |
| #4 | Cutting | |
| #5 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Piggott David C | 12 |
| Publication | Filing date | Title |
|---|---|---|
| CA1228015A | Coupon cutting machine | |
| US4610650A | Plastic bag handle forming apparatus | |
| CA1206362A | Bag making machine having a separating apparatus | |
| CA1206363A | Drive system for plastic bag making apparatus | |
| CA1207573A | Plastic bag handle aperture forming apparatus | |
| CA1206361A | Plastic bag handle forming apparatus |