Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4957570 | Butt-welding of pipes | Patrick W. Jenkins, Roy Cartwright | 1990-09-18 |
| 4797993 | Method of making electroweldable sockets | David M. A. Kenworthy, Eric Bridgstock | 1989-01-17 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4957570 | Butt-welding of pipes | Patrick W. Jenkins, Roy Cartwright | 1990-09-18 |
| 4797993 | Method of making electroweldable sockets | David M. A. Kenworthy, Eric Bridgstock | 1989-01-17 |