Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6410876 | Method for orbital welding of small-, medium-, and large-diameter pipes | — | 2002-06-25 |
| 5534676 | System for automatically controlling weld material beading in orbital welding processes for medium- and large-size pipes | Guglielmo Crivellaro, Rinaldo Denaro | 1996-07-09 |
| 5171954 | Method and device for welding pipes and a pipe-layer | — | 1992-12-15 |
| 5126523 | Device for welding pipes to each other | — | 1992-06-30 |
| 5110031 | Weld suporting ring for pipes | — | 1992-05-05 |
| 4363954 | Device for the back support of the first run weld pool in the automatic butt-welding of pipes | — | 1982-12-14 |