| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 4 | |
| #2 | Canada | 2 | |
| #3 | EPO (European Patent Office) | 2 | |
| #4 | WIPO (World Intellectual Property Organization) | 2 | |
| #5 | Australia | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Punching metal | |
| #2 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ash Stanley P | 11 |
| #2 | Bush Theodore L | 4 |
| #3 | Hartway Dale A | 4 |
| Publication | Filing date | Title |
|---|---|---|
| US6591648B1 | Method of stamping and piercing a tube | |
| US5813266A | Method of forming and piercing a tube | |
| US5630334A | Liquid impact tool forming mold |