Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5935704 | Incremental filament wound pole | — | 1999-08-10 |
| 4714377 | Method of laying pipe sections | Hartley Sandt | 1987-12-22 |
| 4647080 | Pipe joint | Hartley Sandt | 1987-03-03 |
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5935704 | Incremental filament wound pole | — | 1999-08-10 |
| 4714377 | Method of laying pipe sections | Hartley Sandt | 1987-12-22 |
| 4647080 | Pipe joint | Hartley Sandt | 1987-03-03 |