| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 4 | |
| #2 | Denmark | 3 | |
| #3 | EPO (European Patent Office) | 2 | |
| #4 | Australia | 1 | |
| #5 | Canada | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Punching metal | |
| #2 | Unspecified technologies | |
| #3 | Accessories for machine tools |
| # | Name | Total Patents |
|---|---|---|
| #1 | Stein Richard M | 5 |
| #2 | Fraas Robert R | 4 |
| #3 | Hill Ronald C | 4 |
| #4 | Jelinek Ross R | 4 |
| #5 | James Lewis G | 4 |
| #6 | Lux Arthur J | 3 |
| #7 | Shah Harshad M | 3 |
| #8 | Clark Stephen C | 2 |
| #9 | Bzibziak Raymond J | 1 |
| #10 | Goodwill Robert | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US4690021A | Automatic load unload turret punch | |
| US4658688A | Rotary punch and die holders for turret punches | |
| US4703925A | Semi-rigid sheet separation device and method | |
| US4709605A | Method of working sheet material workpieces by a sheet material working machine tool |