Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6684737 | Power tong | Bernd-Georg Pietras | 2004-02-03 |
| 6598501 | Apparatus and a method for facilitating the connection of pipes | Bernd-Georg Pietras | 2003-07-29 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6684737 | Power tong | Bernd-Georg Pietras | 2004-02-03 |
| 6598501 | Apparatus and a method for facilitating the connection of pipes | Bernd-Georg Pietras | 2003-07-29 |